Hexproof (This creature can't be the target of spells or abilities your opponents control.)

First strike (This creature deals combat damage before creatures without first strike.)

Hexproof from black (This creature can't be the target of black spells or abilities your opponents control.)

This creature gets +1/+0 as long as any player controls a black permanent.

Hexproof

You can't lose the game.

Whenever you gain life, draw that many cards.

Whenever you lose life, for each 1 life you lost, exile a permanent you control or a card from your hand or graveyard.

When Lich's Mastery leaves the battlefield, you lose the game.