Deceiver of Form [Oath of the Gatewatch Prerelease Promos] Modern Masters 2017 (Whenever you cast a spell

(Whenever you cast a spell

Set: Alpha Edition Type: Creature — Elemental Rarity: Rare Cost: {2}{G}{G}{G}{G} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking

Set: Fifth Edition Type: Artifact Rarity: Rare Cost: {1} Mana Vault doesn't untap during your untap step

Set: Friday Night Magic 2012 Type: Creature — Human Monk Rarity: Rare Cost: {G} {T}: Add {W}

one must assassinate the previous king

Deceiver of Form [Oath of the Gatewatch Prerelease Promos] Modern Masters 2017 (Whenever you cast a spellSet: Oath of the Gatewatch Prerelease Promos Type: Creature Eldrazi Rarity: Rare Cost: {6}{C} ({C} represents colorless mana.) At the beginning of combat on your turn, reveal the top card of your library. If a creature card is revealed this way, you may have creatures you control other than Deceiver of Form become copies of that card until end of turn. You may put that card on the bottom of your library.