Urza's Incubator [Urza's Destiny] Pauper or triggered ability

or triggered ability

Set: Asia Pacific Land Program Type: Basic Land — Plains Rarity: Common ({T}: Add {W}

Set: Classic Sixth Edition Type: Creature — Human Monk Cleric Rarity: Common Cost: {2}{W} When Venerable Monk enters the battlefield

Set: The Dark Type: Artifact Rarity: Uncommon Cost: {3} {2}

Urza's Incubator [Urza's Destiny] Pauper or triggered abilitySet: Urza's Destiny Type: Artifact Rarity: Rare Cost: {3} As Urza's Incubator enters the battlefield, choose a creature type. Creature spells of the chosen type cost {2} less to cast. "Stop thinking like an artificer, Urza, and start thinking like a father!" Rayne, Academy Chancellor