Festus, Thane of Rot

If Festus, Thane of Rot would be put in your graveyard from anywhere except the battlefield,
exile it instead.
At the beginning of your upkeep, if Festus,
Thane of Rot is in your graveyard, each opponent chooses one—
•Sacrifice a land or creature.
•Each player creates two 1/1 black Rat creature
tokens for each Rat in their graveyard.