"Adficio vita!" Gavin yelled, holding out a hand, attempting to drain the life from within the Grimm. He didn't want to have to kill the poor boy, he simply wished to incapacitate him and get him away from his less-concerned Briarwhite cousin. This spell would do little damage, but if it hit successfully, it would create a tether between them, allowing Gavin to consistently drain his life at a very slow pace. While he cast this spell, he prepared to cast his armor spell, perhaps follow that up with an incantation.

"A vampire sounds nice, just make sure you're in control of it, don't want you creating some monster like last time." He grimaced.