Guardian of the Forgotten
From Modern Horizons 3 set
Guardian of the Forgotten
Creature — Elephant Warrior
4/4
Vigilance
Whenever a modified creature you control dies, manifest the top card of your library. (Equipment, Auras you control, and counters are modifications. To manifest a card, put the top card of your library onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)