Urza, Chief Artificer (Extended Art) [The Brothers' War Commander] Frog Horror Set: Outlaws of Thunder Junction:

Set: Outlaws of Thunder Junction: The Big Score Type: Creature — Spirit Rarity: Mythic Cost: {3}{B}{B} Menace

if it targets one or more other permanents you control

Set: Modern Horizons 3 Prerelease Promos Type: Enchantment

(They're from the chosen plane if it's clear beyond doubt from the name

if you cast it from your hand

Urza, Chief Artificer (Extended Art) [The Brothers' War Commander] Frog Horror Set: Outlaws of Thunder Junction:Set: 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."