Urza, Lord High Artificer (Retro) [Modern Horizons] Demon Realm Race/Demon God At the beginning of each

At the beginning of each opponent's upkeep

True power is achieved through blood and sweat

then discard three cards

1 Merfolk Windrobber

If the chosen card is cast as a spell

Urza, Lord High Artificer (Retro) [Modern Horizons] Demon Realm Race/Demon God At the beginning of eachSet: Modern Horizons 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.