Vials are fairly useless normally, unless you don't have any ranged weapons., so I had the idea of another use for them.

It would be a melee weapon, with the appearance of a large syringe/gun hybrid, not unlike a vita-saw from team fortress or bioshock. It would be unable to charge, and its normal combo would be a 1-move combo that does minimal damage. This may sound quite useless, but the real point would be its ability.

While the gun is currently selected in the field, it will change the use of vials and pills. Using a vial will charge the weapon, giving the vial the appearance that it is filled with the selected vial. Using a charged attack on an enemy would inflict the attribute (unless immune). However, attacking another party member with a charged syringe would instead [i]invert[/i] the effect of the vial, giving the targeted player immunity to the vial type for the same duration as if it was inflicted on an enemy. A players status defense would effect the duration the same way as if it was from an enemy, with higher resistance meaning lower immunity.

Cure and Health pills would act slightly differently. Cure pills would cure all ailments of a party member as well as give immunity to all status' for a very short time, 1 or 2 seconds. Health pills would give less health (around 4/5ths) to the target and a period of invincibility to damage for 1 second. Using a charged pill attack on an enemy by accident would heal the enemy instead.

Mech knight kits would function normally, you cant inject a robot into someone.