Goroggu, Devourer of gods

At the beginning of your upkeep exile Goroggu, Devourer of gods unless you pay {5} or sacrifice a creature
{10}, Put Goroggu, Devourer of gods from exile
into your graveyard
When Goroggu, Devourer of gods enters the graveyard from exile, target creature an opponent controls, that creature gains "{10}, Return Goroggu, Devourer of gods from the graveyard to your hand.
Any player may activate this ability"