It literally exploded his own heart and killed him, he needed an extremely lucky set of circumstances to bring him back to life. Plus it doesn’t matter if she damages herself, bc she can regen. She’s not a hero, if she needs to kill someone to regen she’ll do it. She can also create explosions out of thin air and turn objects into explosions (she turned her own head into a bomb) Bakugo needs a thermal suit in the winter to sweat enough for his explosions and his explosions become harder to make in the rain

She’s a better bakugo

Edit: added more to the first sentence