The Chaos Keeper [Mystery Booster 2 Playtest Cards] Skeleton and the world will tremble

and the world will tremble

Domain — This spell costs {1} less to cast for each basic land type among lands you control

it's 'GRAAAAAR

They may cast it without paying its mana cost

The Chaos Keeper [Mystery Booster 2 Playtest Cards] Skeleton and the world will trembleSet: Mystery Booster 2 Playtest Cards Type: Legendary Creature Elemental Rarity: Rare Cost: {U}{R} The Chaos Keeper enters with a sealed Magic booster pack of your choice under it. (You provide a new pack each time.) Whenever The Chaos Keeper deals combat damage to a player, reveal its cards and put one of them into your hand. (Don't open the booster pack until the first time this ability reolves.)