Mutavault [Morningtide]Set: Morningtide Type: Land Rarity: Rare {T}: Add {C}. {1}: Mutavault becomes a 2 2 creature with all creature types until end of turn. It's still a land. Some changelings born at Velis Vel never return, but their essence never leaves.

Set: Diamond & Pearl: Legends Awakened Type: Psychic Rarity: Common Retreat cost: Colorless

Set: Ixalan Prerelease Promos Type: Creature — Dinosaur Avatar Rarity: Rare Cost: {3}{R}{R}{R} When Burning Sun's Avatar enters the battlefield

I have witnessed both

Set: Ravnica: City of Guilds Type: Instant Rarity: Uncommon Cost: {1}{U} Counter target spell

Set: Beta Edition Type: Land — Forest Plains Rarity: Rare ({T}: Add {G} or {W}

Toxic bones

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {1}{U}{U} Buyback—Discard two cards

Set: Gym Challenge 1st Edition Type: Water Rarity: Common Retreat cost: Colorless

) {T}: Add {R}

Set: Worldwake Type: Land Rarity: Rare Creeping Tar Pit enters the battlefield tapped

Ripley Vance commands a fortress

Set: XY: Roaring Skies Type: Psychic Rarity: Holo Rare Retreat cost: Colorless