Bulwark Ox (First-Place Foil) [Aetherdrift] Elemental Knight [-7]: Target artifact you control

[-7]: Target artifact you control becomes a 9/9 Construct artifact creature and gains vigilance

Set: Dominaria Prerelease Promos Type: Creature — Elemental Rarity: Rare Cost: {5}{G}{G}{G} At the beginning of each upkeep

It can be a key

Set: Love Your LGS 2020 Type: Artifact Creature — Construct Rarity: Rare Cost: {X}{X} Hangarback Walker enters the battlefield with X +1/+1 counters on it

Bulwark Ox (First-Place Foil) [Aetherdrift] Elemental Knight [-7]: Target artifact you controlSet: Aetherdrift Type: Creature Ox Mount Rarity: Rare Cost: {1}{W} Whenever this creature attacks while saddled, put a +1 +1 counter on target creature. Sacrifice this creature: Creatures you control with counters on them gain hexproof and indestructible until end of turn. Saddle 1 (Tap any number of other creatures you control with total power 1 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)