Hangarback Walker [Kaladesh Inventions] Elk You may reveal an artifact

You may reveal an artifact card from among them and put it into your hand

Sword of Kaldra

Set: Visions Type: Creature — Elf Ranger Rarity: Common Cost: {G} Return a Forest you control to its owner's hand: Untap target creature

Let us show them our strength

Set: Eighth Edition Type: Instant Rarity: Uncommon Cost: {3}{R} Destroy all Islands

Hangarback Walker [Kaladesh Inventions] Elk You may reveal an artifactSet: 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.