Bulbasaur (SM198) [Sun & Moon: Black Star Promos]Set: Sun & Moon: Black Star Promos Type: Grass Rarity: Black Star Promo Retreat cost: Colorless,Colorless

The hippo grows wings to fight the condor

{B}: Transform Bloodline Keeper

or when wizard-zombies use their mystic power to create an outbreak

As a planeswalker

Set: Base Set Shadowless Unlimited Type: Fire Rarity: Common Retreat cost: Colorless

(Three mission scenario)

Set: Sun & Moon: Shining Legends Type: Darkness Rarity: Secret Rare Retreat cost: Colorless

As long as enchanted creature is black

Set: Legendary Collection Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

Sacrifice Flooded Strand: Search your library for a Plains or Island card

Set: Sun & Moon: Team Up Type: Water Rarity: Secret Rare Retreat cost: Colorless

Set: Ultimate Masters Type: Instant — Arcane Rarity: Rare Cost: {X}{U}{U} You may exile a blue card with converted mana cost X from your hand rather than pay this spell's mana cost