When a player puts Darkin (makes a unit a demon) on any demon unit, it gives that unit mana, but revoked the item because that unit is already a demon. This can be abused infinitely, as you can see on the attached clip.
I haven’t seen this tried on the other sets (Assassin, Glacial, Sorcerer, Knight), but I would assume that it might be an oversight for those as well.
So you know if you put a item that adds a synergy like blade master on a blademaster the item will fall off. Cant be blademaster twice. Well the item you used retained it's stats. Meaning that if you put a spatula and a BF sword together the attack damage remains on the resulting item. This applies to the tear as well, the 20 mana is retained but a demon cannot become a demon so the item falls off but mana is applied when the item is put on so it remains only while the character is in battle. The problem is you can put items on mid battle resulting in this.
