Dark Knights and Hp Washing

What you need to know:
- you lose 4 MP every wash
- you gain 50-54 HP every point spent in HP
- you gain 64-68 HP every levelup
- you gain 1 MP on levelup for every 10 int worth of gear
- minimum base MP is 156 + 4*level

Procedure:
1) find difference between current base HP and desired base HP, including however many levelups
2) divide by average gain (or minimum gain, if you want a worst case amount) to get number of AP resets required
3) multiply by mp loss to get the total mp loss
4) add to the minimum base MP to get the target MP after however many levelups
5) subtract your current MP from that
6) divide by the number of levels you're gaining to determine MP gain per level
7) subtract 5 for the normal gain per level
8) multiply by 10 to get the amount of int you need from equipment

So, if you want someone else to do the work for you, you need to include
- current level
- target level
- current hp (without gear or HB)
- target hp (without gear or HB)
- current mp