Hela, Goddess of Death

Indestructible
As long as there are less than 10 cards in any
opponent's graveyard, Hela can't attack or block.
At the beginning of each player's upkeep, that
player puts the top two cards of their library into their graveyard.
Whenever a creature is put into a graveyard from anywhere, create a black 2/2 zombie creature
token.