Urza, Lord High Artificer (Retro) [Dominaria Remastered] Cat Cleric and that spell can't be

and that spell can't be countered

Whenever Witch-king

Set: Phyrexia: All Will Be One Type: Legendary Creature — Phyrexian Nightmare Rarity: Rare Cost: {5}{U}{R} Flying

Any number of target nonland permanents you control phase out

Urza, Lord High Artificer (Retro) [Dominaria Remastered] Cat Cleric and that spell can't beSet: Dominaria Remastered Type: Legendary Creature Human Artificer Rarity: Mythic Cost: {2}{U}{U} When Urza, Lord High Artificer enters the battlefield, create a 0 0 colorless Construct artifact creature token with "This creature gets +1 +1 for each artifact you control." Tap an untapped artifact you control: Add {U}. {5}: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.