Spooky, Scary Skeletons

: on your upkeep you may sacrifice a nontoken-creature, on your endstep create 2 tokens of equal to the sacrificed creature.
+2: create a 2/2 Skeleton token that is not considered a token. if you sacrificed a creature this turn destroy target creature.
-8: create 3 copys of target creature, they do damage equal to all their power and toughness combined.