Urza's Incubator [Urza's Destiny] XY44 you can discard 1 DARK

you can discard 1 DARK monster to send 1 DARK monster from your Deck to the Graveyard

Set: HeartGold & SoulSilver: Triumphant Type: Water

" —Commander Yaszen

Set: Shadows over Innistrad Prerelease Promos Type: Enchantment Rarity: Rare Cost: {1}{G} Creatures you control have "{T}: Add one mana of any color

{T}: Counter target activated ability from an artifact source unless that ability's controller pays {W}

Urza's Incubator [Urza's Destiny] XY44 you can discard 1 DARKSet: 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