Shuriken requiring mana?

[MaglithOran]

Hey guys, long time viewer but just registered, hopefully you guys can help me out.

I recently got that yearly itch to replay through FFT, and I generally make my own characters, swap sprites, etc.  I'm using the insane edition.

redoing ramza's skills, I gave him shuriken, exact one used by ninja.

In game, even at full mana it's flashing red and says I don't have enough mana to use it, which is curious.

I have shurikens in my inventory.   Looking at all the properties for shuriken I can't find anything wrong, so I'm hoping you guys have some ideas.  Can post pics or whatever is needed.

[Xifanie]

Throw uses a special skillset type, just like Jump/Item/Draw Out that makes said abilities 100% incompatible in other skillset types. Adding the ability to throw inventory shuriken to a normal skillset like Guts is out of the question because the amount of hacking to accomplish this would be ridiculous.

FFT: Arena uses it's own custom Shuriken ability, which doesn't consume a shuriken, nor can you see one being visually thrown.
That's your best bet, really.