Najarala, Colossal Constrictor

When Najarala, Colossal Constrictor enters the battlefield or at the beginning of your upkeep, you may exile a creature an opponent controls with lesser power than it for as long as Najarala, Colossal Constrictor is on the battlefield. If a creature was already exiled this way, return that creature to the battlefield tapped under its owner's control.
When Najarala, Colossal Constrictor deals combat damage
to a creature, tap that creature and put a stun counter on it. (If a permanent with a stun coun