Hangarback Walker [Kaladesh Inventions] Forest Island Search your library and/or graveyard

Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield

sacrifice it unless it escaped

Set: Mystery Booster 2 Type: Artifact Rarity: Common Cost: {0} {T}

Set: Outlaws of Thunder Junction Special Guests Type: Sorcery Rarity: Mythic Cost: {2}{G}{G} Sacrifice any number of lands

Hangarback Walker [Kaladesh Inventions] Forest Island Search your library and/or graveyardSet: Kaladesh Inventions Type: Artifact Creature Construct Rarity: Mythic Cost: {X}{X} Hangarback Walker enters the battlefield with X +1 +1 counters on it. When Hangarback Walker dies, create a 1 1 colorless Thopter artifact creature token with flying for each +1 +1 counter on Hangarback Walker. {1}, {T}: Put a +1 +1 counter on Hangarback Walker.