Artorias the Abysswalker

When Artorias the Abysswalker enters the battlefield, exile target player's graveyard.

Sacrifice Artorias the Abysswalker: Humans
you control gain hexproof and indestructible until
end of turn.

The legend that Artorias repelled the Abyss only tells half of the story. Only once he is defeated can the world be truly safe from the Abyss.