After fusing with his Warg half, Tezka had not only broken the natural limit of the Fylgja and reached ten tails.
He had also gained the ability to split in up to ten bodies, one for each tail. All of them would share the same mind, allowing him to be in multiple places at the same time or work ten times faster than normal.
The problem was that his strength would decrease for each clone he created. On top of that, if one of them was killed, Tezka would experience their death and lose the tails that he had bestowed upon them along with the elemental mastery they held.
Healing magic wouldn't bring them back, Tezka needed to practice from scratch, wasting time and resources to condense the lost element into his flesh and blood.
"Which tail did you leave behind?" Vastor was flabbergasted seeing how battered the Fylgja was and the item he held in his left hand.