Deku, Heir of All-Might

All for One—Whenever Deku deals
combat damage to an opponent, you may
cast an instant or sorcery from your hand, and
spend mana as though it were mana of any color.
If that spell causes damage, place a +1/+1
counter on Deku, and then it deals damage
to itself equal to its power.
"The deeper the darkness, the more dazzling
the light!"