Ensa, Epitome of Order

Ensa can't be countered.
Lifelink, indestructible
Whenever you untap one or more lands, put a
Machination counter on Ensa.
Remove a Machination counter from Ensa: Until
end of turn, whenever an opponent casts a spell,
counter it unless he or she pays {x}.
Remove a Machination counter from Ensa: Until
end of turn, creatures you control have shroud.
Remove four Machination counters from Ensa:
Target play skips their next turn.