Catapult Feud: Dice Ammo Expansion is a mini-expansion containing custom semi-soft D6 dice, where you get a 2nd shot if it lands with the Doubleshot face up. But beware if it lands with the Backfire face up, then your opponent gets to send it back at you!
Note: This expansion was originally marketed and released as Catapult Kingdoms: Dice Ammo Expansion.