Hangarback Walker [Kaladesh Inventions] Human If that card's mana value

If that card's mana value is less than or equal to the sacrificed artifact's mana value

Set: Invasion Type: Creature — Elf Rarity: Rare Cost: {1}{G}{G} Other Elf creatures get +1/+1 and have forestwalk

At the pinnacle is the perfect

{1}: Wall of Opposition gets +1/+0 until end of turn

Target player can't cast spells this turn

Hangarback Walker [Kaladesh Inventions] Human If that card's mana valueSet: 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.