The Duelist Heroine

Izumi Midoriya was quirkless. A life shattering fact that can ruin anyone's hopes of being a hero in a world of quirks.

Hiding from Katsuki, Izumi stumbles across a old and forgotten place where she finds an assortment of strange cards. Turns out the cards were part of an old forgotten game called Duel Monsters.

And it turns out she can hear their voices, talk to them, and can summon them!

By lending her their power, they will help her become the greatest hero ever!

Probably greater than All Might.