Pitiless Deacon

Flying
Whenever an artifact enters the battlefield under
an opponents control, put a +1/+1 counter on
Pitiless Deacon.
At the beginning of your upkeep, tap X creatures
an opponent controls, where X is the number of
+1/+1 counters on Pitiless Deacon.
"Those that seek to augment their reality of their own
volition fail to see the Truth. They will kneel, or be assimilated."