Havi, the All-Father is a rare Legendary Creature — God Warrior card from Assassin's Creed (ACR), collector number 146. Current market price: $0.75 (foil $0.90), TCGplayer market prices via Scryfall.
Havi has indestructible as long as there are four or more historic cards in your graveyard. (Artifacts, legendaries, and Sagas are historic.) Sage Project — Whenever Havi or another legendary creature you control dies, return target legendary creature card with lesser mana value from your graveyard to the battlefield tapped.