A lot of minion management. Ideally, you want to knock the boss to partner 1 , then pass a minion to partner 1 after partner 1 passes the boss to partner 2. Cycle and repeat without killing all minions.

Vitis - Silver Garment, Might Bracelet Leon - Silver Garment, Strength Bracelet Juju - Mithril Garment, Battle Bracelet, Mask of Loathing, Restoration Charm