Hey Andra, the thanksgiving event came with items dropping from mobs which can be used in a compound formula, but these items can also be used to recover hp and mp in battlefields. Any other item with the same description can not be used in battlefields.
The items are called Tart Berry Sauce and Stuffing.
These items can lead to abuse and people spamming them while in possession beast etc. Please remove these before christmas event starts or sooner.
Thank you, as always.