Proteus Machine [Scourge] Halfling Citizen Set: Commander Legends Type: Creature

Set: Commander Legends Type: Creature — Elemental Rarity: Mythic Cost: {5}{G}{G} When Avenger of Zendikar enters the battlefield

Set: Dungeons & Dragons: Adventures in the Forgotten Realms Commander Type: Creature — Vampire Wizard Rarity: Rare Cost: {3}{B}{B} Flying

Set: Zendikar Rising Promos Type: Creature — Human Wizard Rarity: Mythic Cost: {1}{U} Kicker {4}{U}

Set: The Lord of the Rings: Tales of Middle-Earth Commander Type: Legendary Creature — Halfling Advisor Rarity: Rare Cost: {B}{G} Partner with Merry

one must assassinate the previous king

Proteus Machine [Scourge] Halfling Citizen Set: Commander Legends Type: CreatureSet: Scourge Type: Artifact Creature Shapeshifter Rarity: Uncommon Cost: {3} Morph {0} (You may cast this card face down as a 2 2 creature for {3}. Turn it face up any time for its morph cost.) When Proteus Machine is turned face up, it becomes the creature type of your choice. (This effect lasts indefinitely.)