[Nekojinn]

First off, yes i posted this before, i've just tested it but it's still with the same problem.

Mixed Martial Arts description has:
"As long as you do not have a sub-weapon or a shield equipped in your hands-slot, you can use Fist skills without having a fist equipped..."

Meaning that a Lare Grystale *should* work, but doesn't.

I've tested it by using a Ether Lare Grystale, getting into a battle and seeing that i could not use my Verglas or MA skills(AKA Heaving Kick, Expanding Ice, etc.)

Then i switched to a Spine Leash and was able to use the skills normally.

This either means that it is bugged or that Mixed Martial Arts just prevents all shields altogether, even if they're in your Main-Hand and not hand-slot.