Urza, Lord High Artificer (Borderless Profile) [Commander Masters] Frog Frogs you control have "{T}:

Frogs you control have "{T}: Add {G} or {U}

Set: Wilds of Eldraine Commander Type: Legendary Artifact Rarity: Rare Cost: {5} As Throne of Eldraine enters the battlefield

Set: Wilds of Eldraine: Enchanting Tales Type: Enchantment Rarity: Mythic Cost: {1}{R}{R} Whenever a creature is dealt damage

• Target creature gets +3/-3 until end of turn

Urza, Lord High Artificer (Borderless Profile) [Commander Masters] Frog Frogs you control have "{T}:Set: Commander Masters 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.