Jeskai Ascendancy [Khans of Tarkir Prerelease Promos] Timeless exile cards from the top

exile cards from the top of your library until you exile a nonland card that costs less

then destroy target creature of an opponent's choice

Set: Kaladesh Inventions Type: Legendary Artifact Rarity: Mythic Cost: {0} Metalcraft — {T}: Add one mana of any color

there is an additional combat phase

Jeskai Ascendancy [Khans of Tarkir Prerelease Promos] Timeless exile cards from the topSet: Khans of Tarkir Prerelease Promos Type: Enchantment Rarity: Rare Cost: {U}{R}{W} Whenever you cast a noncreature spell, creatures you control get +1 +1 until end of turn. Untap those creatures. Whenever you cast a noncreature spell, you may draw a card. If you do, discard a card.