Thrumming Stone [Coldsnap] Ixalan Promos That land is a Swamp

That land is a Swamp for as long as it has a mire counter on it

you may return target creature to its owner's hand

Set: Unlimited Edition Type: Enchantment — Aura Rarity: Rare Cost: {W} Enchant Wall

Set: Onslaught Type: Instant Uncommon Cost: {U} Return target nonland permanent to its owner's hand

They each have flying and "This creature can't be enchanted

Thrumming Stone [Coldsnap] Ixalan Promos That land is a SwampSet: Coldsnap Type: Legendary Artifact Rare Cost: {5} Spells you cast have ripple 4. (Whenever you cast a spell, you may reveal the top four cards of your library. You may cast spells with the same name as that spell from among the revealed cards without paying their mana costs. Put the rest on the bottom of your library.)