Authority of the SkekSis

At the beginning of each endstep, if two or more creature cards entered a player's graveyard,
create a 5/3 black Garthim creature token.
Whenever a creature you control dies, sacrifice Authority of the SkekSis unless you discard a
card or pay 1 life.
"There is absolutely nothing in this world that does not
bend to my will."
—SkekSo, the Emperor