Ugin, the Ineffable (Japanese Alternate Art) [War of the Spark Promos] Ogre Rogue you may change Eldrazi Mimic's

you may change Eldrazi Mimic's base power and toughness to that creature's power and toughness until end of turn

Set: Aether Revolt Prerelease Promos Type: Instant Rarity: Rare Cost: {1}{U}{U} Counter target spell

but a poor choice can only end in torment

and always attacks its controller

Set: Prophecy Type: Enchantment Rarity: Rare Cost: {1}{U} Whenever a player puts a nontoken creature onto the battlefield

Ugin, the Ineffable (Japanese Alternate Art) [War of the Spark Promos] Ogre Rogue you may change Eldrazi Mimic'sSet: War of the Spark Promos Type: Legendary Planeswalker Ugin Rarity: Rare Cost: {6} Colorless spells you cast cost {2} less to cast. +1: Exile the top card of your library face down and look at it. Create a 2 2 colorless Spirit creature token. When that token leaves the battlefield, put the exiled card into your hand. 3: Destroy target permanent that's one or more colors.