Erebos's Titan is a mythic Creature — Giant card from Magic Origins (ORI), collector number 94. Current market price: $0.30 (foil $0.75), TCGplayer market prices via Scryfall.
As long as your opponents control no creatures, this creature has indestructible. (Damage and effects that say "destroy" don't destroy it.) Whenever a creature card leaves an opponent's graveyard, you may discard a card. If you do, return this card from your graveyard to your hand.