Krovikan Horror [Alliances] 104 Set: Unhinged Type: Creature —

Set: Unhinged Type: Creature — Monkey Rarity: Common Cost: {3}{G} As Monkey Monkey Monkey enters the battlefield

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {1} Mana Vault doesn't untap during your untap step

OR a Spell Card

it produces colorless mana instead of white mana

Krovikan Horror [Alliances] 104 Set: Unhinged Type: Creature —Set: Alliances Type: Creature Horror Spirit Rarity: Rare Cost: {3}{B} At the beginning of the end step, if Krovikan Horror is in your graveyard with a creature card directly above it, you may return Krovikan Horror to your hand. {1}, Sacrifice a creature: Krovikan Horror deals 1 damage to any target.