North Star [Legends]Set: Legends Type: Artifact Rarity: Rare Cost: {4} {4}, {T}: For one spell this turn, you may spend mana as though it were mana of any type to pay that spell's mana cost. (Additional costs are still paid normally.)

Set: Resale Promos Type: Legendary Creature — Dragon Rarity: Rare Cost: {5}{R}{G} Flying

or planeswalker an opponent controls

That creature's controller creates a 3/3 green Frog Lizard creature token

Set: Black & White: Plasma Freeze Type: Dragon Rarity: Uncommon Retreat cost: Colorless

Set: From the Vault: Lore Type: Instant Rarity: Mythic Cost: {1}{B} Add {B}{B}{B}

{1}: Target spell or permanent becomes white until end of turn

Set: Core Set 2019 Type: Enchantment Rarity: Rare Cost: {3}{U}{U} At the beginning of your upkeep

{T}: Exile target artifact card from a graveyard

Set: Oath of the Gatewatch Prerelease Promos Type: Creature — Eldrazi Rarity: Rare Cost: {6}{B} Devoid (This card has no color

Set: Shadowmoor Type: Enchantment — Aura Rarity: Rare Cost: {3}{R} Enchant creature

it deals 6 damage to each creature with flying

{2}: Greater Morphling becomes the creature type of your choice until end of turn