Using Change(swap) for easy HP and MP?

I'm not sure that it's "easy", but yes you can use Swap to get HP & MP growth more quickly.

Notes:
- It only compares the start of battle HP/MP to the end of battle HP/MP, when it works out the chance of growth. So it doesn't matter how the HP/MP were lost during the battle.
- Losing an amount over half their max-HP or max-MP, gives the greatest chance of the growth.
- Running out of MP is the biggest problem of Swap, it can get very costly.
- Your other party members will still try to resist Swap with their Magic Defence, when you try to Swap their HP/MP with the caster.
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