Valakut, the Molten Pinnacle (Expeditions) [Zendikar Rising Expeditions] Sliver attacking creatures you control gain

attacking creatures you control gain flying until end of turn

{T}: Put target Aura card from a graveyard onto the battlefield under your control attached to a creature you control

Set: The Brothers' War Prerelease Promos Type: Legendary Artifact — Powerstone Rarity: Rare Cost: {5} When The Mightstone and Weakstone enters the battlefield

Set: Secret Lair Drop Series Type: Sorcery Rarity: Rare Cost: {B} Choose two target players

Then if your library has no cards in it

Valakut, the Molten Pinnacle (Expeditions) [Zendikar Rising Expeditions] Sliver attacking creatures you control gainSet: Zendikar Rising Expeditions Type: Land Rarity: Mythic Valakut, the Molten Pinnacle enters the battlefield tapped. Whenever a Mountain enters the battlefield under your control, if you control at least five other Mountains, you may have Valakut, the Molten Pinnacle deal 3 damage to any target. {T}: Add {R}.