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* ''Webcomic/TheAdventuresOfDrMcNinja'':
** The superpower of flight is bestowed by an organic jetpack that [[CharlesAtlasSuperpower grows from overly-developed abdominal muscles]]. It's spelled out that fueling the organic jetpack requires a methane-rich diet, and that the power of flight does ''not'' grant immunity from the thin air of higher altitudes -- those with the organic jetpack are invariably [[WithGreatPowerComesGreatInsanity driven insane]] by the oxygen deprivation.
** A fight with an opponent with a laser eye ([[spoiler:a cyborg Frans Rayner]]) ended very quickly once the beam was fired and missed, leaving [[spoiler:Frans]] too weak to fight. Why? The good Doctor noted that the eye had no outside power source, and was never used earlier in the fight, meaning it burns up a ''lot'' of calories.
** In "The End: Part 2", the Doctor [[RememberedICouldFly remembers]] he'd shown SuperStrength in an early story (basically as a cheap joke). So he uses that to kick down a big metal door that was blocking his path. He doesn't have the invulnerability needed to go along with such strength, though, or at least not quite enough.
--->'''[=McNinja=]:''' Ow, my leg!
* ''Webcomic/AnotherGamingComic'' crosses over into tabletop tropes with this: Pyromaniac Nuclear Dan, whose catchphrase is "I cast Fireball centered on myself!", had his roleplaying character briefly lack full immunity to his fire. Not wise enough to just stop casting centered on himself, said character took a few hitpoints of damage from every blast, inciting Dan to rage.
* ''Webcomic/DinosaurComics'' discusses this, when T-Rex designs a game much like ''Franchise/SuperMarioBros'', except that the player character can't shoot fireballs from his hands without burning them.
* ''Webcomic/ElGoonishShive'':
** Elliot's scantily dressed superheroine form "Cheerleadra" [[http://www.egscomics.com/index.php?id=1681 apparently has cold resistance]] (contains spoilers).
--->'''Ellen:''' Yeah, speaking of snow, [[LampshadeHanging how are you not freezing?]]\\
'''Cheerleadra:''' ''[shrugs]''
** Grace, a shapeshifter, is also an example. It turns out that drastically changing body size, shape, and structure is dangerous and painful, and Grace's body was therefore genetically engineered to release natural painkillers upon transformation. Vlad, who lacks the secondary power, was crippled whenever he tried even cosmetic transformations, and eventually gave up completely.
** Similarly, Grace's species can do very complex math in their heads, to allow them to properly calculate proportions when shapeshifting.
** [[https://www.egscomics.com/egsnp/2016-09-14 Piercings]] and other items partially or entirely inside the body grow or shrink with a person affected by a spell that changes a person's size, along with [[https://www.egscomics.com/index.php?id=1056 similar secondary powers]].
** Most transformation spells include "form acclimation", altering the target's muscle memory to accommodate changes in height and build and providing the instincts necessary to use new limbs.
** Prior to the "un-change", the Will of Magic would [[https://www.egscomics.com/comic/balance-018 handle the processing for complicated spells]], allowing the caster to use them without having to consciously control all the variables. After the "un-change", however, this level of interference was no longer feasible and all spells switched over to "manual".
* ''Webcomic/{{Freefall}}'': Its eventually pointed out that the cranial cavity of a red wolf wouldn't be able to contain enough neural tissue for a human like brain. So [[UpliftedAnimal Florence]] is described to have most of her "brain" contained within her spinal cavity instead.
* ''Webcomic/GrrlPower'':
** Achilles, a hero who is completely "proper, aggravating invincibility" -- he can not be suffocated, drowned, poisoned, burned, frozen or injured by any force known. He is about 50% stronger than an average human, since he doesn't have to worry about breaking bones or tearing muscles. He has blocked a sword thrust with his eye. His hairstyle will never change. However, he does not have any anchoring effect, so enough force will knock him away from the battle, and it will just take time for him to get back. His teammates have used him to test their own powers or [[FastballSpecial as a bowling ball]]. Sydney, at one point, [[https://grrlpowercomic.com/archives/comic/grrl-power-621-egocentrap-detector/ used him to test for traps]].
** It is later confirmed that some of Maxima's invulnerability comes from a sort of force field projected around her during combat. This explains how when she stood in an explosion and received no ClothingDamage while a good chunk of Achilles' outfit was burned away. A later attack does get through her main shield enough to tear away some of her clothes, but she is still mostly unharmed.
** Halo's shield is [[http://grrlpowercomic.com/archives/1476 apparently air tight]] as she became quite light-headed after spending an extended amount of time with her shield up. That being said, it is capable of protecting against lasers while still letting visible light through. As Dabbler says, her shield is "hardly entry-level." She later learns [[spoiler:that another orb generates an oxygen field]], so she actually ''discovered'' one of these. Her flight orb also cancels out vertigo while she's holding it, and she [[spoiler:later unlocks a form of Feather Fall, which doesn't require her to hold her orb]].
** Sciona, a villain who uses BloodMagic, gives herself a set of EyeBeams -- only to realize she can't see a damned thing while using them.
** Deus [[https://www.grrlpowercomic.com/archives/comic/grrl-power-1040-benevolish/ lampshades it]] when talking about how Super Strength requires a tough body, lest [[LudicrousGibs the Super inhale too deeply and accidentally explode]].
* ''Webcomic/GunnerkriggCourt'': {{Invoked|Trope}} when [[spoiler:Parley]] is trained to become Court Protector. The {{Charles Atlas Superpower}}s come with a hefty side of [[RunicMagic runic wards]] to protect her body from her own SuperStrength.
* ''Webcomic/{{Homestuck}}'': Spades Slick is able to subdue Itchy (a gangster with SuperSpeed) by holding out his leg to trip him, because Itchy lacks the SuperReflexes to dodge it.
* ''Webcomic/KongTower'' frequently examines this trope. The first comic shows a FlyingBrick try to catch a falling bus, only for it to land anyway with a him-shaped hole in it. Several comics feature a speedster who, though he has the durability and reflexes needed for his power, lacks the '''traction''', and ends up slipping on the floor or being launched into the air trying to go over a hill.
* ''Webcomic/LeagueOfSuperRedundantHeroes'': The comic frequently shows the results of ''not'' having these. Besides one-off character Bulk, main character Lazer Pony has implants in his optical nerve that let him [[EyeBeams shoot lasers out of his eyes]] -- or rather, ''behind'' his eyes, meaning [[DeconstructedTrope his eyes burned out on the first shot.]]
* ''Webcomic/{{Magellan}}'': The level of secondary superpowers varies. Most of those with super-powers do sport Required Secondary Powers. Or maybe those who don't have them [[SuperPowerMeltdown eliminate themselves]].
** One of the staff members has to wear an exoskeleton because she has super-strength but not super-durability.
** One of the early superheros, [[http://magellanverse.com/?p=141 The Streaker]] suffers ClothingDamage when using his super-speed and resolves the problem by not wearing clothing.
** There is also a kind of magic water that allows blades to cut superhuman skin and hair, without which superheroes wouldn't be able to shave.
* The world of ''Webcomic/{{Mindmistress}}'' largely lacks these, although engineered powers (Mindmistress shows a distinct fondness for empowering individuals) frequently have them added in explicitly as technological measures.
* ''Webcomic/TheOrderOfTheStick'':
** Roy dons a belt of gender changing and becomes a bald girl, because if a "magic item doesn't specifically say it grows hair, it probably doesn't."
** [[http://www.giantitp.com/comics/oots0326.html In a later strip]], the heroes (sort-of-accidentally) defeat a hydra by decapitating it until it grows so many heads that it can't supply all of them with blood, causing it to pass out. Roy specifically noted that ''this'' Hydra, unlike others in the setting, lacked the secondary power which limits the number of heads (thus preventing this exact scenario)
** The Dashing Swordsman class are immune to all damage involving glass, so they can perform dramatic {{Super Window Jump}}s without hurting themselves. Elan demonstrates this also means he can punch through a window without injuring his hand.
** Exploited by Lien: she has a ''ring of water breathing'', which comes in handy in arctic climates for its secondary effect of protection from cold environments. [[ChekhovsGun And then, later, for the actual water breathing.]]
** It's mentioned a few times that dwarves have two livers, explaining why Durkon and others are perfectly fine while their teammates get hammered drinking a similar amount of beer.
* Sigrid of ''Webcomic/{{Prequel}}'' is a mage who develops a specialty for charm-increasing alchemical potions, the effect of which on anyone within a radius of her, is essentially "Sigrid is amazing and can do no wrong." It eventually turns out Sigrid ''herself'' is not exempt from this effect... and constant exposure to it has resulted in her developing extreme narcissism and egomania.
* ''Webcomic/QuestionableContent'': [[DiscussedTrope Discussed]] in [[https://questionablecontent.net/view.php?comic=4697 this strip]] where a character asks about RobotGirl Bubbles's SuperStrength.
* ''Webcomic/RareCandyTreatment'': [[https://www.deviantart.com/bummerforshort/art/Moving-Tales-290332432 "Moving Tales"]] depicts what would happen if this trope is averted in the ''Franchise/{{Pokemon}}'' games. A Ditto can transform but cannot alter its size thanks to conservation of mass, a Pineco can't use Earthquake because it's too light, and an Electrode cannot use Sucker Punch because it has no arms.
* ''Webcomic/StandStillStaySilent'' introduces a subtype of [[PlagueZombie troll]] that can develop an AcidAttack. According to the EncyclopediaExposita page about them, whether they ''also'' develop robust organ linings and tougher skin or get slowly killed by their own acid varies from individual to individual.
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