Final Fantasy Hacktics

I'm sorry if this is a noob question, but I haven't found this anywhere on the boards.  Is there a way through ASM to copy the functionality of the Blood Suck status effect to the Dark/Evil status effect?  I'm trying to create a job with a skillset filled with skills that inflicts statuses on the caster similar to Blood Suck, but gives the character a monster skillset instead of the Blood Suck skillset.

I was actually hoping to find a way to get the game to keep the character's current spritesheet instead of trying to swap it out.  Basically, I want to be able to have characters with this class get a monster's skill list and become uncontrollable without transforming.

I might go ahead and try learning MIPS r3000 assembly.  It would be nice to have another programming language under my belt.

Does anyone know of a good tool for editing formulas?  I have an idea for a "Gau" type class, but I think I would need to edit the formula for the Moldball Virus spell in order to make it work.