Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Kappa Tech-Wrecker enters with a
deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) counter on it.
Whenever Kappa Tech-Wrecker deals combat damage to a player, you may remove a
deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) counter from it. When you do, exile target artifact or enchantment that player controls.