Hellflame

Hellflame, rendered in Japanese as Herufureimu, is a long-range Emitter Quirk and the property of Enji Todoroki, the Flame Hero known as Endeavor. It debuts in Chapter 28 of the manga and Episode 17 of the anime.

Its inheritance runs through the Todoroki family in two directions. Shoto Todoroki received it as the left half of Half-Cold Half-Hot, while Toya received an intensified variant called Blueflame. The stronger version came at a brutal price: Toya inherited his mother Rei's tolerance for cold rather than his father's endurance for heat, which leaves his own flames punishing his body every time he uses them.

Only One For All has produced more named Ultimate Moves; Hellflame ties Explosion for second with twelve.

The Quirk hands its wielder fire in bulk. Enji throws out large blasts to incinerate what stands in front of him and can wrap his own body in flame. He governs temperature directly, dialing the output up or down, and at the top of that range the fire turns blue, echoing his son Toya's Blueflame.

Mobility comes bundled in. Jets aimed downward from his soles hold him aloft, and flame expelled from his back drives him forward, amounting to flight; reversing that thrust lets him brace against an attack. The anime widens the toolkit, showing him sculpting flames into weapon shapes, melting footholds into a wall to run along it, and burning a target down at the cellular level, which renders healing and regeneration Quirks useless. He has also cauterized grave wounds with the heat, as he did for Rumi Usagiyama after her fight with the High-End Nomus at the Jaku Hospital Raid. Later, having lost his right arm to All For One, he built a replacement fist out of fire and shot beams from his eyes in that same battle.

The cost is thermal. Successive heavy attacks or a drawn-out fight push Enji's body temperature to dangerous heights and degrade his performance, and unlike Shoto, who carries his own coolant, he has no internal remedy and depends on outside help such as heroes hosing him down. Rain does not stop the Quirk but hampers it and robs him of his usual speed. His heat tolerance is not immunity either, a point made plain when Dabi's Blueflame began leaving burns on him.

Enji Todoroki is the sole holder. He habitually keeps himself burning purely for the image it projects as the Flame Hero, and his combat approach is to bury opponents under extreme heat, working through broad gouts of flame, pinpoint rays, and burning fists.

He rations temperature deliberately. Weaker foes get low-heat attacks that usually incapacitate them and spare his body the strain; he only climbs the scale to finish a fight, since those attacks spike his own temperature and can turn against him if overused.

His signature is Flashfire Fist, which pushes the flames to their maximum and produces a heat ray that vaporizes what it touches, at the cost of driving him straight to his limit and impairing everything he does afterward. Jet Burn vents flame behind his knuckles to accelerate a punch, first seen against Hood. Hell Spider streams fire from his fingers in a web-like spread that tore through Hood's muscle and diced a building apart, and it can be gathered into a whip-like shape. Prominence Burn condenses his glow into a pressurized beam that overwhelmed Hood's Super Regeneration, the creature surviving only by ripping off its own head; the PLUS ULTRA variation grapples the target first and pushes past his ceiling to finish the job. His other named techniques include Flare Circle, a condensed circular explosion; Hell's Curtain, which gathers every flame into one point before hurling a blanket of fire forward; Ignited Arrow, a thrown harpoon of flame; Hellfire Storm, a burning whirlwind; Hell Minefield, a wave of fire erupting across the ground; Vanishing Fist, a flame-wrapped hook punch first used on Tomura Shigaraki during the Paranormal Liberation War; and Vanishing Jet Burn, which merges that hook with Jet Burn into a giant fist of fire.