Final Fantasy Hacktics

hey, so this isn't a problem so much as a question. I wanted ramza to have revive from monk for his squire but I didn't want it to cost 500jp for him but I didn't want to change the jp cost for the actual monks. So I cloned revive and pasted all on plunder gil and changed to jp to 100 or 150 (I forgot -.-) and changed the text to have the same definition as revive and name in game and animation so its all working fine like it should, but what was plunder gil at first I didn't think it was in the game cause the script said crash game but I cant help but think I seen an enemy use it once before (ie special enemy like Elmdor) but not sure, and also wanted to know if there was a better way of doing this. Not really going to be doing this with any other abilities as of now but for a future reference it would be nice c:

~Thanks!