Academy Ruins [Secret Lair: Heads I Win, Tails You Lose] Swamp Mountain Thassa isn't a creature

Thassa isn't a creature

Polymorphine — You may have Callidus Assassin enter the battlefield tapped as a copy of any creature on the battlefield

untap equipped creature

if you didn't cast it from your hand

{4}: Create a 1/1 green Saproling creature token

Academy Ruins [Secret Lair: Heads I Win, Tails You Lose] Swamp Mountain Thassa isn't a creatureSet: Secret Lair: Heads I Win, Tails You Lose Type: Legendary Land Rarity: Rare {T}: Add {C}. {1}{U}, {T}: Put target artifact card from your graveyard on top of your library. Its secrets once wrought the greatest artifice ever known. Now crabs loot the rubble to decorate their shells.