Karn, the Great Creator (Stained Glass) [Secret Lair Drop Promos] Time Spiral you may reveal the top

you may reveal the top four cards of your library

Set: Dominaria Prerelease Promos Type: Legendary Creature — Elemental Avatar Rarity: Mythic Cost: {3}{B}{G}{U} During each of your turns

Set: Portal Type: Sorcery Rarity: Uncommon Cost: {1}{G}{G} Destroy target land

Ridiculous

Karn, the Great Creator (Stained Glass) [Secret Lair Drop Promos] Time Spiral you may reveal the topSet: Secret Lair Drop Promos Type: Legendary Planeswalker Karn Rarity: Rare Cost: {4} Activated abilities of artifacts your opponents control can't be activated. +1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value. 2: You may reveal an artifact card you own from outside the game or choose a face up artifact card you own in exile. Put that card into your hand.