Kotaro

Defender. Damage dealt by Kotaro is equal to its toughness. Whenever you cast an instant or sorcery or activate an ability that requires mana and doesn’t deal damage, put a +0/+1 counter on target creature.

{t}: Until end of turn, target creature deals damage equal to its toughness instead of its power.
{g/w}{g/w}: Untap Kotaro, it gains Trample until end of turn.