nezuko is immortal and only stopped by day time giving deku and levi time to rest and fight during the day

Levi > Mikasa and Nezuko > Todoroki in this situation (given the fact that she's a demon, zombies probably wouldn't affect her). I'm not sure if Deku would be a bigger help than Tanjiro overall, but since the other two are already better, I think I'm justified in choosing this squad.

blood demon art is op

Not trying to spoil anything for anyone but... Deku be OP.