Rubinia Soulsinger [Legends] Elemental Horse {T}: For one spell this

{T}: For one spell this turn

Set: Kaladesh Prerelease Promos Type: Creature — Demon Rarity: Mythic Cost: {3}{B}{B}{B} Flying

and you may spend mana as though it were mana of any type to cast those spells

Set: Legends Type: Creature — Fungus Demon Rarity: Rare Cost: {5}{B}{B} When Mold Demon enters the battlefield

Set: Future Sight Type: Creature — Lhurgoyf Rarity: Rare Cost: {1}{G} Tarmogoyf's power is equal to the number of card types among cards in all graveyards and its toughness is equal to that number plus 1

Rubinia Soulsinger [Legends] Elemental Horse {T}: For one spell thisSet: Legends Type: Legendary Creature Faerie Rarity: Rare Cost: {2}{G}{W}{U} You may choose not to untap Rubinia Soulsinger during your untap step. {T}: Gain control of target creature for as long as you control Rubinia and Rubinia remains tapped.