Gemstone Caverns [The List] Vehicle Set: Theros Beyond Death Type:

Set: Theros Beyond Death Type: Creature — Merfolk Wizard Rarity: Rare Cost: {U}{U} When Thassa's Oracle enters the battlefield

and extremely hard working team whose mission is to make you laugh

will provide you with powerful effects and then return to your hand in the End Phase

The joke didn't make sense in Australia (30)

Gemstone Caverns [The List] Vehicle Set: Theros Beyond Death Type:Set: The List Type: Legendary Land Rarity: Rare If Gemstone Caverns is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it. If you do, exile a card from your hand. {T}: Add {C}. If Gemstone Caverns has a luck counter on it, instead add one mana of any color.