Kappa Cannoneer
From Murders at Karlov Manor Commander set
Kappa Cannoneer
Artifact Creature — Turtle Warrior
4/4
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Ward
Whenever this creature or another artifact you control enters, put a +1/+1 counter on this creature and it can't be blocked this turn.