Purphoros, God of the Forge [Mystery Booster] SM148 Return those cards to the

Return those cards to the battlefield under their owner's control at the beginning of your next upkeep

Discard a card: Witch-king of Angmar gains indestructible until end of turn

look at the top five cards of your library

Set: Ikoria: Lair of Behemoths Type: Legendary Creature — Dinosaur Turtle Rarity: Rare Cost: {5}{R}{R} Trample

and may want to in response to this ability

Purphoros, God of the Forge [Mystery Booster] SM148 Return those cards to theSet: Mystery Booster Type: Legendary Enchantment Creature God Rarity: Mythic Cost: {3}{R} Indestructible As long as your devotion to red is less than five, Purphoros isn't a creature. Whenever another creature enters the battlefield under your control, Purphoros deals 2 damage to each opponent. {2}{R}: Creatures you control get +1 +0 until end of turn.