Urza, Chief Artificer (Extended Art) [The Brothers' War Commander] Human then that player chooses a

then that player chooses a card name

If they don't

Set: The List Type: Legendary Creature — Human Wizard Rarity: Mythic Cost: {2}{U}{B} When Gisa and Geralf enters the battlefield

Enchanted creature gets +X/+Y

Set: Ravnica: City of Guilds Type: Artifact Rarity: Rare Cost: {3} Whenever a nonartifact permanent enters the battlefield under your control

Urza, Chief Artificer (Extended Art) [The Brothers' War Commander] Human then that player chooses aSet: The Brothers' War Commander Type: Legendary Creature Human Artificer Rarity: Mythic Cost: {3}{W}{U}{B} Affinity for artifact creatures (This spell costs {1} less to cast for each artifact creature you control.) Artifact creatures you control have menace. At the beginning of your end step, create a 0 0 colorless Construct artifact creature token with "This creature gets +1 +1 for each artifact you control."