If a creature's power is less than 0 when it's doubled, instead that creature gets -X/-0, where X is how much less than 0 its power is
Remember dethrone triggers on each attack
Lorcana The First Chapter Booster Pack 21 In this pack, we got: Commons: Aladdin Cornered Swordsman, Jafar Wicked Sorcerer, Pumbaa Friendly Warthog, He's Got A Sword!, Donald Duck Strutting His Stuff, and Vicious Betrayal Uncommons: One Jump Ahead, Jumba Jookiba Renegade Scientist, and Olaf Friendly Snowman Rare or above: Te Ka The Burning One (Super Rare), and Magic Mirror (Rare) Foil: Steal From The Rich (Rare) A solid pack with the Super Rare and Rare Foil
On the other side of things Creeperhulk is a Craterhoof Behemoth that you can play in a deck that isn't dedicated to ramping
One-Off Utility Lands The Gold Saucer The Gold Saucer has a fabulously flavorful design that beautifully captures the idea of a city whose economy centers on gambling