Si'lagoth, the Deathless One

Flying, protection from black, ward—discard a card.

Historic spells you cast cost {1} less to cast.

Historic cards in your graveyard have flashback. The flashback cost is equal to its mana cost.

{4}{b}{b}: Return Si'lagoth from your graveyard to
the battlefield under your control. The ability costs {1} less
to activate for each historic permanent you control.

"I'm a god, you fools. How can you kill a god?"