"...Est." Gavin finished, turning and staring at K.C. At this point he assumed that around two percent of the boy's power had been drained, less than enough to cause him to falter. He had to knock him out, even if he allowed the Grimm to let Clara go, she wouldn't let up, he knew that. Thankfully, his incantation had vastly improved his own defenses, he would have to draw K.C over to him.
"Hm? Oh you son of a... nevermind that, sure, we're done, whatever you say..." He slowly manipulated one of his tendrils up Clara's leg, moving it towards her neck in an attempt to protect it. He gestured with his knife in a way that flashed the sun into K.C's eyes, attempting to distract him.
"I'll let my powers down in a sec, it's an incantation that's hard to dismiss... uh, wait, that's not supposed to happen... sorry, sorry. Hm, ventilabo umbra ego... uhh..."