Curse of the Wendigo

Enchant creature or player
Enchanted creature gets +4/+4 and has haste, first strike, menace, and "At the beginning of your upkeep, sacrifice two creatures, then put a +1/+1 counter on this creature."
When enchanted creature dies or at the beginning of enchanted player's upkeep, return this card to the battlefield if it's in the graveyard, then attach it to a creature if able, or