Ethel the Moonshaper

: Creatures you control have haunt. The beginning of your upkeep you may gain life equal to the number of creatures haunting target player.
+1: You may sacrifice a creature. Target creature gains all abilities of all creatures haunted by creatures you control until end of turn.
-7: You get an emblem with, "Whenever a creature dies under an opponent's control, gain control of it and exile it haunting target creature."