Whim of Volrath [Tempest] Elf Ranger Set: Kaladesh Inventions Type: Artifact

Set: Kaladesh Inventions Type: Artifact Creature — Construct Rarity: Mythic Cost: {X}{X} Hangarback Walker enters the battlefield with X +1/+1 counters on it

It's found in the silence that follows

Set: Rivals of Ixalan Prerelease Promos Type: Legendary Creature — Merfolk Shaman Rarity: Mythic Cost: {1}{G}{U} Tap another untapped Merfolk you control: Kumena

Set: Friday Night Magic 2009 Type: Creature — Snake Shaman Rarity: Rare Cost: {1}{G} Sacrifice Sakura-Tribe Elder: Search your library for a basic land card

Set: Mercadian Masques Type: Artifact Rarity: Rare Cost: {3} {4}

Whim of Volrath [Tempest] Elf Ranger Set: Kaladesh Inventions Type: ArtifactSet: Tempest Type: Instant Rarity: Rare Cost: {U} Buyback {2} (You may pay an additional {2} as you cast this spell. If you do, put this card into your hand as it resolves.) Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another until end of turn. (For example, you may change "nonred creature" to "nongreen creature" or "plainswalk" to "swampwalk.")