This is for all difficulties even master. First select the Trident, Princess, and the Straw Hat as your loadout. Like so:


Now pick the Aura skill. At first this skill is going to do next to no damage. Focus on the following in order of importance:

• Damage (Pain): combine three of these for the Reliable Damage version (+7 Damage)
  
• Size: combine into the +3 Size version
  
• Mana Regen: Put this in your second row, you will only need one row of spells, you only need 1-2 of these max
  
• Aura: get as many of these as possible whenever it is not offered against the others, we want the Lingering Version when combined
  
• Link: combine three into the trigger 2 spells on kill
  
• Split: combine ASAP to get rid of the minus damage downside

The trick here is to get your Aura skill in a spot where it can kill things then link another aura to it to basically double the damage. Eventually we want to link two auras with the upgraded Link to basically create a huge area where enemies cannot enter.

Example Run: (Ignore the elemental ones, they are not necessary)


Good luck!