Guan Yu, Sainted Warrior is a rare Legendary Creature — Human Soldier Warrior card from Portal Three Kingdoms (PTK), collector number 6. Current market price: $55.19, TCGplayer market prices via Scryfall.
Horsemanship (This creature can't be blocked except by creatures with horsemanship.) When Guan Yu is put into your graveyard from the battlefield, you may shuffle Guan Yu into your library.