Bald of Evil: He does not have skin for hair follicles to grow from
Double Knockout: His battle with the Dan Ketch/Noble Kale Ghost Rider seemed to be a Mutual Kill but vengeance spirits and angels are hard to kill, even for each other.
Nineties Antihero: Has become one because of retroactive continuity, though almost all his major enemies being worse than he was makes it a little easier to swallow, there are still some really questionable things he did in older comics.
Nominal Hero: That's what happens when you decide to turn a villain into a hero without justifying or having them atone for any of their past actions.
Retcon: From an evil demon to a misguided angel (he was fighting demons and such, just doing it wrong)
The Rival: To Mephisto, who after he defeated him had fun watching him struggle for control of human hosts who didn't want anything to do with him.
Colour-Coded for Your Convenience: When Zarathos came back, was retconned into a good at heart angel and started making Blaze's Ghost Rider more like his, Dan's dropped Noble Kale and got a new spirit with blue flames so the two could be told apart more easily.
Flechette Storm: The chain was initially unique to him and he still possess a greater control over it than the other riders, even to the point of breaking it into its individual links and launching them as a cutting barrage.
Mistaken Identity: Blaze attacks him because he thinks he is Zarathos, the demon that Mephisto put in him, then helped Dan with his situation to make up for it. Dr. Strange and Nightmare also attacked him for the same reason. Vengeance comes after him thinking he is John Blaze.
Mode Lock: Blackout tried to kill him by ripping his throat out. All that did was force him to become the Ghost Rider permanently and thus give him more incentive to kick Blackout's ass.
Revenge: Why he accepted being a Ghost Rider so quickly.
Curse: As a result of both Uri-El and Mephisto claiming his soul he's forced to wander between the worlds a spirit. He typically possesses the first born of a certain family to turn them into Ghost Riders, becoming a kind of curse to them too.
It Runs in the Family:The mother of John Blaze and Dan Ketch. A descendent of Noble Kale, as well as his last host before Dan Ketch.
Out-Gambitted: She manages to make Mephisto swear to end "The Curse of Noble Kale". Mephisto instead sticks Zarathos in John. Naomi tried to fight Mephito but he kills her and lets Nobel find his way into her younger son Daniel, since Noble's "curse" was to enter the first born of the generation it technically had ended.
Spanner in the Works:After death her spirit continues to subtly mess with Mephisto and Blackheart's plans.
Antihero Substitute: He even got to team up with another example of this trope, when Venom was in his "lethal defender" phase.
Killed Off for Real: So it seems. A spirit of vengeance that looks suspiciously similar to his shows up overseas and but doesn't act like him, suggesting Michael is still dead and it has found a new host.
Nineties Anti-Hero: Meant to be the "edgier" counterpart to Dan Ketch/Noble Kale, a walking skeleton wearing a spiky jacket on fire who caused the worst imaginable pain in people just be looking at them...yeah it was only a little plausible because 90s Ghost Rider was a little nicer than the Blaze version and thus apparently not hardcore enough for the 90s.
Shaped Like Itself: As a spirit of vengeance he went by the creative moniker of Vengeance.
Spikes of Villainy: Bigger where Ghost Rider already had spikes and also spikes coming out of his head
Unwitting Pawn: As caretaker explained, he sold his soul to Mephisto for power he was already going to get anyway. Blackheart also mocks him for being easy to manipulate. The Lilin also had him going for awhile.
Curbstomp Battle: John and Dan, for different reasons, were not as powerful as Ghost Riders when they started out as they were later in their careers. Alejandra was at full power from day one and had a habit mowing through their old enemies and people they wouldn't have been able to beat head on. She nearly kills Skadi, which would have ended the Fear Itself crossover before it began. This stops once she runs into Blackheart though.
Distaff Counterpart: Well more like one to Dan Ketch than John Blaze, relishing the chance to take vengeance on the guilty but she spent her time playing off John Blaze.
Passing the Torch: She got the torch from John Blaze, who quickly regretted it when Mephisto informed him.
Didn't Think This Through: His plan to get Gabe and himself out of East LA? Steal a racing car and win incredibly high prize in underground street race. Once cops start chasing him, he suddenly realizes that if he gets arrested, Gabe will be left completely alone, with nobody to take care of him.
Hidden Depths: Seems to be a quiet, antisocial tough guy at first, but it quickly becomes apparent he cannot take conditions he and his brother must live in and probably had to quickly grow up. Also, he was adversized as cool underground street racer. Turns out it's not something he does for fun, but a desperate way to earn money to give him and his brother better life.
Batman Gambit: He indirectly kills Blackheart and almost brings about Mephisto's defeat without even lifting a finger. This gambit took 200 years before its final payoff and he was not actively involved beyond a general nudging and then letting Mephisto be Mephisto.
Enemy Mine: Undead MC, a vampire motorcycle gang and Shelob, a gigantic demonic spider, teamed up to kill him but failed.
Flaming Sword: It kind of looks like one but obviously isn't a natural flame.
Our Angels Are Different: He looks less like any popular depiction of an angel or the way they were described in scripture and more like a bigger, stronger, more complete version of the Ghost Rider, which made sense with where Noble Kale's story was going. It makes even more since with later retcons, what doesn't is why the angels introduced after him are standard winged humanoids.
The Cavalry: He gives a then powerless John Blaze his sword so he can kill some supernatural nasty things.
Buried Alive: There are apparently many evil beings trapped beneath his cemetery, the man eating people of dust are confirmed to be down there because they temporarily escaped and tried to eat the Night Stalkers.
Abusive Parents: Though given his kids are, like him, both invincible and pure evil, this might cross into Hilariously Abusive Childhood. He's still a gigantic dick to them, very purposely for the reason of making them more evil.
Big Bad: Up until Blaze (temporarily) got rid of Zarathos, Mephisto was behind the book's central conflict as well as the mastermind of many other mishaps. In the wider Marvel Universe, he occasionally manages to play this role too.
Card-Carrying Villain: He is evil and proud of it, sometimes going as far as to claim to be the origin of evil.
The Chess Master: He will often allow himself to be beaten if he can use the event to give a greater enemy more grief down the line.
Demon Lords and Archdevils: He is only one of a number of powerful and rival demon Hell Lords, others being the likes of Thog and Sataanish. He is generally depicted as the strongest of them all, though not by a significant standard.
Dimension Lord: Of one of the splinter realms, which he patterns after Hell as described in The Divine Comedy, purely to screw with people.
Enemy Mine: He is willing to help the Ghost Riders against common threats, though he rarely gets involved directly.
Exact Words: Mephisto will follow the word of his deals, and will go out of his way to violate the spirit of the deals.
Such when he pits Blaze and Zarathos against Asmodeus, saying they would be freed from each other if they managed to outrace him but if they weren't fast enough to win they'd have to serve Asmodeus. Ghost Rider wins the race but Mephisto finds some reason to back out of the deal. Ghost Rider was really bait to get his rival to accept a small fine, Mephisto might consider being blasted into non existence "small" (see Fighting a Shadow below) but it probably wasn't what Asmodeus had in mind.
Fighting a Shadow: He will always come back as long as his dimension is still around. A powered up Alejandra came close to killing him for real.
Large and in Charge: He is sometimes depicted as being as tall as a small building, big enough to easily pick human-sized characters up with one hand. Thanks to Voluntary Shapeshifting he can appear as big or small as he wants, but this is often implied to be his true size, or close enough to it.
Legions of Hell: Among his many servants, they are not used very much surprisingly. Then again, he is far more powerful than most of them anyway.
Multiple Choice Past: Writers can't seem to agree on exactly what he is or where he came from; since he is The Prince of Lies, this has been explained as Mephisto either not knowing himself and / or Mephisto making stuff up to better confuse people.
Nigh-Invulnerability: Has been severely hurt and even completely destroyed on more than one occasion, but he always reforms. Even then, it takes some very powerful attacks to do him real damage in the first place.
Our Souls Are Different: He likes to stick the souls he gets into the bodies of demons who follow him. The process was reversed for his rival Zarathos. On many other occasions he is seen eating and drinking them.
Physical God: Within his own dimension. Exactly how powerful he is comes down to the old Depending on the Writer but two of his best showings are fighting Galactus to a near-stalemate and casually destroying an entire galaxy from his chair. Both are older examples and both, again, occurred while he was in his native dimension. Outside it, while he is still quite powerful and always very dangerous, he is nowhere near as strong as he normally would be.
Rage Against the Heavens: He occasionally speaks of being at war with God himself and claims that many of his actions are done to spite Him. Its not clear if he is genuinely serious about this (regardless of whether he is actually the Devil or not- being a demon might be enough) or if this is just him playing up his Satan image for effect.
Rogues-Gallery Transplant: Originally started out as a villain of the Silver Surfer. But he's not exclusively a Ghost Rider villain either. He also often pops up as a Black Panther nemesis, and more generally he has crossed paths with nearly every important Marvel hero at one point or another. He could even count as an enemy of many villains, including Doctor Doom.
Satanic Archetype: He's not the Satan; there are many wannabes who have equal claim to that title (equally invalid claims) but Mephisto is generally the most used stand in with only one or two people introduced so far who are maybe more legit.
Current Marvel canon is that rival Hell Lord Lucifer, aka the Fallen Angel Marduk Kurios, is the real and legitimate Satan. But who knows how long that will last. Also, its generally implied that Mephisto is the most powerful demonic Hell Lord (if only by a slight margin) so he's no less big a deal than the real Satan anyway. Other, earlier stories have also depicted Satan as a gestalt entity of all the major Hell demons combined, in which case Mephisto is Satan, just not all of him.
Smug Snake: Sort of. While he's certainly very, very powerful and competent and has a not-insignificant amount of major accomplishments to his name, he also likes to act like he's a far bigger deal than he actually is, as beings like Chthon, Set, and Dormammu greatly dwarf him in power and potential reach (he generally accomplishes far more than they do, but that's because they're either locked away or act on a far larger scale, which understandably takes more time and effort).
This is partly strategy, however- he makes himself out to be the Ultimate Evil because that works to his advantage, making his enemies and victims fear him more as well as spreading misinformation about who and what he really is (if he even knows himself). Still arguably counts as this since he's rarely quite as successful or menacing as you'd think a genuinely powerful demon like him should be. Then again, he is also wont to appear weaker than he is, so maybe he's playing a long-game. Regardless, he is never one to be underestimated.
Villain Override: Not usually, but he did resort to it once when he felt a witch had failed him badly enough.
Villainous Widow's Peak: Considering he can look like whatever he wants one would think he would at least project the image of better hair. His is not as bad as Lilith's though.
Voluntary Shapeshifting: He can and does take several forms, though his favourite seems to be a stereotypical Big Red Devil (well, tall and thin at least). Its implied that his real form is a large red lizard...thing... that he sometimes shows up as, though there is variation there as well as sometimes it is thin, and sometimes it is an obese Fat Bastard. Likewise, and regardless of his form, sometimes he is human size and sometimes he is several stories tall. He also has no qualms about changing his gender.
Abusive Parents: When you are the son of Mephisto, this is a given (though it should be stressed that Blackheart was born evil, so this isn't a Freudian Excuse at all). His first story ends with Mephisto squishing him- literally, and more than once-, then depowering him when Blackheart still kept annoying him. His next two ended with Mephisto actually eating him. In the latter two cases, Mephisto regarded it as Tough Love.
The Chessmaster: Not quite as good as he would like to be, but he plays a mean game.
The Corrupter: He often tries to turn heroes into his minions to use against Mephisto.
Dark Is Not Evil: Blackheart unquestionably is rotten to the core, but the Darkforce power he often taps into (and is partially made out of) is just that, a force. Many creatures, good and evil, have made use of it. Then again, the Darkforce has always been portrayed as Ambiguously Evil itself.
Dimension Lord: Temporarily succeeded in overthrowing his father and reigned in Hell. He is also able to tap into the power of the Darkforce dimension; within it, he is actually The Omnipotent.
Humans Are Special: Villainous, condescending example. He very much considers humans to be his inferiors; at the same time, he admires our capacity for independence and free will, and believes he understands our moral complexities better than Mephisto does. He once freely admitted that he envies us, though only because we had more free will than him (ie. his father kept him on a tight leash).
Made of Evil: Centuries worth of sins collected from the "Christ's Crown" area were used by Mephisto to bring him to life. This is what makes him immune to the penance stare, experiencing all the evil he's caused doesn't really bother him since he's made of the stuff. He can still be hurt by simpler, more direct methods though.
Manipulative Bastard: He spends surprising little time getting his own hands dirty, despite saying that Mephisto is too passive. But he is a bit more interactive and personal about it.
Nigh-Invulnerability: He has been crushed, squished, eaten, cut, stabbed, sliced, machine-gunned...you name it. He always recovers. Even if you do somehow kill him, all you will do is send him back to Hell so he will come back anyway. If he dies in Hell, he just recovers even faster.
Overlord Jr.: He's not Mephisto's biological son, technically, but still takes after his father's oppressive, expansionist ways.
The Philosopher: He used to do a lot of musing on the nature of things like free will and evil. He quickly concluded that he knew more about it than his dad did.
Psychic Powers: A power he has but most demons do not, including his father. It gives him a bit of an edge, but its not brought up much and he can't use it to force somebody to sign over their soul without crossing some metaphysical lines.
Master of Illusion: He can conjure nightmarish images to torment others or trick them into evil actions (eg. he once made Daredevil beat up an innocent man by pretending that he, Blackheart, was that man in disguise).
He was introduced in Daredevil, but Spiderman showed up to help Murdock out. He was only really a Daredevil villain for one Story Arc; he has crossed paths with pretty much every Marvel hero since then. In his second appearance he's already moved on from the Man Without Fear and chose instead to target Wolverine, The Punisher and Dan Ketch Ghost Rider. He's only really a Ghost Rider villain by virtue of crossing paths with them a little bit more than everyone else.
Self-Duplication: In his second story he tried to make three separate deals with Punisher, Dan Kletch and Wolverine. When all three rejected him, it was revealed he was talking to each of them all at the same time in three different locations.
Hired Guns: He works as an assassin, muscle or whatever else you pay for.
Scars Are Forever: Averted but he did hold a grudge against Ghost Rider for burning his face(because he was dumb enough to try and bite a flaming skeleton).
Starter Villain: For Dan Ketch, introduced in issue #2 of his book. Blackout really wasn't a big threat to Ghost Rider then and Ghost Rider only got stronger as his story went on through the midnight sons arc while Blackout's been stagnant.
And Your Little Dog Too:Tries to kill Dan Ketch and his already hospitalized sister because of their connection to the Ghost Rider.
Cool Mask: More literal than most as, Deathwatch has little reason to hide his identity
Evil Tastes Good:If anybody ever deserved to die by the penance stare, it was him. He feeds off of other people's pain though so Ghost Rider decides to just kill him in a more simplistic manner. Alejandra later shows the penance stare is capable of hurting him but also ends up settling on a more simplistic finish.
First Law of Resurrection: Ghost Rider kills him, yet he shows up again after Civil War. Two of his minions did want to resurrect him but didn't know how and since they haven't showed up since it is doubtless the writers even remember.
The Musketeer: In line with his love of ninjas he still uses a sword in the modern era. Of course he really needs guns more.
Not Even Human: He looks like us but he aint us. This is revealed pretty early however and not needed as justification for killing him. His actions would have eventually caused Ghost Rider to take him out regardless of species.
Villain Teamup:With The Hood, a fan of super villains despite living in a world where super villains and their crimes are very real. Perfect partner for Deatwatch when you see the other tropes that apply to him though.
Ghost Memory: He can see another person's memories by drinking their blood.
Impaled with Extreme Prejudice: When Ghost Rider finally catches him. It doesn't kill him but slows him down enough to be caught in an explosion that took out the building they were in. Unfortunately for Ghost Rider, that didn't kill him either. Seems Dan Ketch and Kale weren't too familiar with vampire weaknesses.
Misanthrope Supreme: He didn't choose to become a vampire, but this is why Steppin Razor decided to turn him.
Not Quite Flight: As a member of the Varnae/Dracula line of vampires, he can turn into mist but he also has a nonstandard ability to levitate. Not enough to really fly but enough to stand on and jump off things that really shouldn't support his weight.
Scary Black Man: Though he has to prove it first, as the goofy haircut is kind of disarming
Sunglasses at Night: He might need to, since Blade does too. Or maybe he just likes to, as Steppin Razor did not need them.
Atlantis:She hung around there long ago but was banished long before its sinking.
Summon Bigger Fish: This was accomplished by calling on Tiamat(or the Leviathan, depending on whose penciling the story) and having her(or it) eat Lilith.
Big Bad: She is what drove the midnight sons together.
Composite Character: The primary source seems to be the Akkadian Kisikillillake but she also draws from various Sumerian Lilitu and depictions of Lilith in Judo-Christian apocrypha, including not being the only one.
Deflector Shields: To the point she can cover the moon and isolate entire nations from the rest of the Earth!
Totally Not a Werewolf: She has pale skin and drinks like a vampire so some have mistaken her for one. She is also known for attempting seduce people in their dreams, which leads some to mistake her for a succubus. She's worse than both.
Our Vampires Are Different: She was also accused of being involved in the creation of the vampires belonging to Varne's line(more commonly known as Dracula's line).
Composite Character: Of the various Ba'als, Ba'al Hadad is where his powers come from, the blood spilling of his followers comes from Ba'al Hammon, the association with the Gehenna refuse dump is probably from Ba'al Berith or Ba'al Peor and the degeneration into a demon is of course from medieval demonology.
Demonic Possession:Not often, he only did so out of necessity when most of his body was destroyed.
Making a Splash: Not that it would be much use against Ghost Rider but great for his crop growing followers when he was less of an evil bastard than he is now.
Shock and Awe: Green electricity sometimes to match the rest of him
Eviler than Thou: The tetrarchs of entropy, old foes of the Avengers, briefly show up while he is trapped in the same dimension they are and try to escape at the same time he does but Ba'al shoves them back in. This did not turn out so well for him later when a Windigo sided with John Blaze against him. Ba'al would not have had any trouble defeating Blaze if he was alone, since Blaze could not become a Ghost Rider at the time.
First Law of Resurrection: God gave mankind the ability to kill him and the deed was done. Then he showed up again because an author still wanted to use him.
Hell: Just for pun, the actual valley of Gehenna was where the Hand Of God beat him down. Gehenna being a garbage dump site that was metaphorically compared to hell.
Totally Not a Werewolf: The Ba'alim, his followers, are known for drinking blood and are sometimes granted special powers but they are not vampires.
Back from the Dead: Does this for people in mass when he gets out of hell. He does this just to have bodies though, he does not have as much use as one would think for their identities or anything.
Batman Gambit: He tortures those in his hell even more than just being there already does to give them more incentive to escape, figuring maybe if someone else manages to get out, he can follow them. It finally works when he snares a Ghost Rider.
Bigger Bad: Somehow his activities fall under the radar during Civil War and World War Hulk, even though he could do more damage than both combined.
Cold-Blooded Torture: Besides having demons tear apart John Blaze every day, he also forced Greexix to deepen a pit for the rest of eternity. When an accident causes Greexix to go blind though, Lucifer decided to torture him for real. After Zadkiel's attempt to take over heaven gets him sent to hell, Lucifer takes joy in torturing him too.
Mother of a Thousand Young: Possibly a father, he's supposedly created numerous demons but it can be reasoned he's not the source of all of them, maybe not even the original source of them but who knows.
Not So Different:Tries this on Ghost Rider after they end up in the spot where Blaze made his deal with Mephisto.
Number of the Beast: Since his re-entry to Earth split him into six hundred and sixty six different fragments, which is just fine with him, as he isn't omnipresent. The Ghost Rider sets about destroying all the fragments but each time one is killed, all the others get stronger, Lucifer figuring he will eventually be powerful enough to defeat whoever targets him. If the fragments aren't killed off, he gets to cover more ground.
Satan: He claims to be but many other lords of hell dispute it, some have apparently been at it longer than him. The fact that many religious scholars (even in real life) argue that Lucifer and Satan are not the same entity doesn't help.
Ironic Hell: After getting kicked out of heaven he wanted to become the lord of hell but unlike everyone else competing for that title he can't escape his own realm without help. Even when he gets out, he's effectively trapped as soon as someone sticks him back in. Even his former subordinate and fellow fallen angel Asmodeus had more freedom than him in this regard, despite being much weaker.
Voluntary Shape Shifting: Combine this with demonic possession and the ability to have multiple bodies out in the world at once and you have a real source of paranoia.
Cessation of Existence: He goes about wiping people on Earth out of existence to prove his godhood to other people.
Dark Is Not Evil: He leads a squad of Black Hosts, large dark and intimidating figures who look like many depictions of fallen angels. But only the ones he leads are bad, most of them are good guys despite their appearance.
Infernal Paradise: With Zadkiel in charge heaven is worse than any hell anyone else had managed to come up with.
Manipulative Bastard: By way of retroactive continuity he could be argued to behind Lilith's release and the Midnight Sons story arch, as well as the cause of the depression that allowed him to manipulate Dan in his own story arch.
Our Angels Are Different: He isn't as odd looking as Zarathos or Uri-El but not as pretty as the angels introduced between them and him like Ruth.
Fallen Angel: He may be evil, he may want to take over heaven for himself, but he's still dedicated to slaying demons and the forces of hell.
Public Domain Character: Mythological Zadkiel is not a villain or at all or even mean. Even less so for the Zadkiel who is a figure in religions still being practiced today. He might have just been chosen for being obscure.
Rewarded as a Traitor Deserves: He rebelled against heaven along with Lucifer but then betrayed Lucifer and sided back with heaven. His peers were not impressed and demoted him from the rank of Arch Angel.
The Captain: He used to be in charge of the spirits of vengeance as well as a black host.
Scary Scarecrows: Not to be confused with Batman's scarecrow, though some Spider-man comics had him using "fear pheromones", which suggests some writers and editors at Marvel did.
Serial Killer: Though one who chooses victims that draw attention to himself. If not for his being a (sort of)super powered being with no regard for victim's suffering he would probably be a pretty unsuccessful serial killer.