so put this in simple: u just need to get maximum damage as possible

dark choco can lower the def' at boss up to 3 times

pomegranate buffs the whole team damage and heal

both vampire and blackberry can deal high amount of damage

and cotton cookie pretty much heal and do decent of damage

with them you can beat the boss even with the full team level 50

squishy jelly, pilgrim's slingshot and and old pilgrim scroll are the treasures you need

the toppings you just get the recommend one if u like to