Liliana, Corrupting Queen

+2: Put a corruption counter on target creature. then take control of all creatures with corruption counters.
-4: return target card named Liliana's Corruptor from the graveyard or exile to your hand. you may send target creature to the graveyard in its place
-10: create 10 4/4 Corrupted Angels with Corrupt and Flying. for each creature with corrupt, put a loyalty counter on Liliana, Corrupting Queen