Guardian Angel [Unlimited Edition] Yeti Mutant They became a single entity

They became a single entity

Set: Commander Anthology Type: Creature — Angel Rarity: Uncommon Cost: {3}{W}{W} Flying

but in the laboratory

Set: Oath of the Gatewatch Promos Type: Legendary Creature — Merfolk Wizard Rarity: Rare Cost: {1}{U}{R} Whenever you cast your second spell each turn

Guardian Angel [Unlimited Edition] Yeti Mutant They became a single entitySet: Unlimited Edition Type: Instant Rarity: Common Cost: {X}{W} Prevent the next X damage that would be dealt to any target this turn. Until end of turn, you may pay {1} any time you could cast an instant. If you do, prevent the next 1 damage that would be dealt to that permanent or player this turn.