Loki versus the robbers in chapter 1. His completely non-chalant attitude is what really sells the moment.
Izuku versus the Sludge Villain and the Yakuza thugs that show up trying to take Eri. He may be outnumbered, with a litte girl on to protect and his powers may not be the most suitable for this challange, but this doesn't mean Izuku will give up. After making the villains run circles around each other with his illusions, Izuku delivers a Declaration of Protection that is both heartwarming and badass:
Izuku: And you wanna know the best part? I just did all of that without any powers! I didn’t even need them to beat you! Because guess what?! Quirk or no quirk, nothing was going to stop me from saving Eri! All Might:Very well said, young man.
Despite not having One for All, Izuku still manages to save Ochako from the Zero-Pointer. How? Taking a page of Classic Loki's book and creating a massive copy of the Zero-Pointer that distracts the original enough for the students to escape.
Izuku and Ochako's match against Bakugo and Kirishima. Between Izuku's Confusion Fu with his illusions and Ochako's Gravity powers, the two hold their own and take the spike-haired students without much effort.
Izuku's Badass Boast before taking the villains at the USJ:
Izuku: I am Izuku Lokison. Prince of Mischief. (Daggers manifest on each hand) And I am burdened with glorious purpose.”
Izuku versus the villains. It's both hillarious and badass how his Confusion Fu takes a dozen and half of villains without breaking a sweat. He also takes on the Dark Elf sent by Loki to test his abilities and beats it up. Of course, sparing the guy comes back to bite him when they meet again and he uses the Kurse stone to become nearly invincible.
On to that note, Izuku and Denki versus Kurse. The demi-god siblings are forced to take on the unstopable monster, whose power equals, and maybe even surpasses the Nomu's, and by Thor and Loki's admission, only managed to beat by sheer luck. Despite being scared, they don't let it deter them and jump to take the monster together. Like fathers, like children.
Back in Chapter 14, Izuku shapeshifted into Hirona in order to get rid of the Nomu before it killed him. Now, realizing the Nomu is likely the only thing in the building (at least until All Might shows up) that can take on the thing, he decides to pull a Godzilla Threshold. He and Denki fly back to plaza, Izuku shifts into Hirona once again, and orders the brainless monster to take orders from him and only him. By the time Kurse arrives at the place, All Might is already there, but he doesn't have to take on the Dark Elf on his own. That's right, the Nomu, the very thing created to destroy the Symbol of Peace, helps him defeat the alien, with a combo move that feels like a Double Detroit Smash similar to the one Izuku and All Might did in Two Heroes. It's just as epic as it sounds.
All over the place during the Sports Festival:
Izuku's Boring Yet Practical way to win the Obstacle Race during. He creates a decoy of Midnight and the real and the fake one argue, he slips trough the obstacles and wins it. He even waits until Shoto and Bakugo are just about to reach it just to mess with them further.
During the King of the Hill event, Izuku gets cornered by Monoma and other 1-B students that got tricked into Vlad's witch hunt. Before Izuku can be overwhelmed, Ochako, Mei and Bakugo jump in and save him, reminding him they are a team and they will fight through this event together. Eraserhead also gets a small one going full Papa Wolf when he realizes Vlad is the one who put a target on his students back and nearly gets into a fight with the Blood Hero.
Izuku comes up with a strategy to beat Shoto's team as the event nears its end: Realizing his team is on disadventage, he has Mei to hit Shoto's team with a flashbang grenade, and in the middle of the confusion shapeshift himself and his teammates into Todoroki's teammates and vice-versa. This causes Todoroki to freeze his team and nearly gets him knocked out by Izuku's.
It comes the time for Izuku's fight against Shoto. Predictably, Shoto starts off trying freeze Izuku with a glacier, only for the trickster pull out his hand make the ice... stop. And then goes back right at Shoto, allowing the viewers to realize what exactly Izuku was learning from the book Thor gave him: Cryokinesis, from his Frost Giant ancestry, an ability Loki never taught him due to his hatred for their kind and allows Izuku to go toe-to-toe with Shoto. The two of them go on their fight for a while until Izuku gets him to use his flames, something nearly lethal to him due to his Frost Giant biology, but that doesn't make Izuku back away from the fight. As the both of them release their most powerful attacks, causing a massive explosion that knocks Shoto out of the ring. And how does Izuku escapes the shockwave from it? By shapeshifting into a rat (which Monoma called him earlier) and hiding amongst the cracks of the arena. As he points out, despite his new tricks, he’s Loki’s son, and Izuku always makes sure to have one final trick up his sleeve just in case.
The Finals: Izuku vs. Denki. The Princes go all out with everything they have, lightning, illusions, ice, Thunderstrike, clones, all of it. What Izuku lacks in terms of raw power, he more than makes up for with his wits and tricks. Unfortunetaly, as Denki points out, being unpredictable makes him predicatable, and when Izuku tries to catch his cousin off guard by distracting him with an Astral Projection to take him from behind, Denki predicts this move and beats him, winning the Festival, while also helping Izuku understand his father's teachings can only get him so far.
While the Festival was going on, the villains where putting their own schemes to play.
Deciding it is time to remind the heroes of the threat she posseses, Hirona takes matters in her own hands and goes after a new recruit for the League. She first invades a HPSC base to get information on the target before heading to the Beast Forest in order to get Ragdoll to find the target for her, and while she relies on Kurogiri for it, she manages to take on all the Pussycats at once. After holding Kota hostage and releasing him once she gets the information, we find out who is the person she is after: Lady Nagant. The League is going to a dangerous and awesome direction.
While Gorr's rampage is terrifying to see, you can't deny it was a stroke of genius from both him and Stain, especially to knock down the pantheon of Smug Super assholes from Omnipotence City off their pedestals to have Stain act as bait so Gorr and his berserkers sack the city and kill its people. Most of them had it coming anyway.
