Urza, Lord High Artificer [Modern Horizons] RC1 It works like this

It works like this

Set: Friday Night Magic 2008 Type: Creature — Human Shaman Rarity: Rare Cost: {1}{G}{G} When Eternal Witness enters the battlefield

Set: Beta Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one color word with another

birds of paradise littered the skies

Urza, Lord High Artificer [Modern Horizons] RC1 It works like thisSet: 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.