Thran Portal [Dominaria United Prerelease Promos] SV116 They mutate into the creature

They mutate into the creature on top plus all abilities from under it

Set: The Brothers' War Retro Artifacts Type: Artifact Creature — Construct Rarity: Uncommon Cost: {3} Artifact spells you cast cost {1} less to cast

Set: Diamond & Pearl: Secret Wonders Type: Item Rarity: Uncommon

Whenever a player casts a black spell

Set: Sun & Moon: Cosmic Eclipse Type: Fire Rarity: Common Retreat cost: Colorless

Thran Portal [Dominaria United Prerelease Promos] SV116 They mutate into the creatureSet: Dominaria United Prerelease Promos Type: Land Gate Rarity: Rare Thran Portal enters the battlefield tapped unless you control two or fewer other lands. As Thran Portal enters the battlefield, choose a basic land type. Thran Portal is the chosen type in addition to its other types. Mana abilities of Thran Portal cost an additional 1 life to activate.