Snatcher, the Soul Broker

: Permanents you control have protection from creatures with contract counters on them, and you control how those creatures attack and block.
+1: Exile up to two target creatures, then return them to the battlefield under their owners' control with contract counters on them.
-X: For each of X target creatures with contract counters on them, its controller sacrifices it and loses 2 life, and you gain 2 life.