Artorias, the Abyss Walker

Protection from black
Artorias, the Abyss Walker can never be under
the control of a player who does not own it.
While Artorias, the Abyss Walker is in your graveyard, your graveyard can not be targeted by
spells or abilities your opponents control.
{1}{b}: Sacrifice Artorias, the Abyss Walker.
Sir Artorias hunted the Darkwraiths, and his sword strikes harder against dark servants.