Protocol Knight [March of the Machine]

Set: March of the Machine Type: Creature — Human Knight Rarity: Common Cost: {3}{U} When Protocol Knight enters the battlefield, tap target creature an opponent controls. Put a stun counter on that creature if you control another Knight. (If a permanent with a stun counter would become untapped, remove one from it instead.) “Ingress without proper writ of extraplanar intent? Unacceptable!”