Ax Bass

"A guitar made from the weapon of the Demon King of the Nightosphere. That is so metal."

- BATTD description  is an Instrument Weapon that gives 1 damage + 1 per 5 stars and gives characters in range + 5% attack speed and Marceline's allies and skeletons get + 5 range and + 10% attack speed. It can only be equipped to Marceline.