In the absence of any instruction that he should be careful, Kostos isn't. The three wisps linger with Benedict and Hanzo, and two more are already with him when he slides up and crests the hill, then another two while he approaches at a steady walk, fearless because one is having his eyes poked out and the other is sporting three arrows and Kostos is a quick draw with a barrier besides.

The wisps are less pretty than dragons, but they listen well—to him, anyway—and stream away on command to fan out behind the two Venatori, harassing them from the back with bursts of ice or fire. They aren't very hardy or very powerful, but they are very good at being obnoxious.

As an afterthought, he reaches out and pulls mana from the one Helena has latched onto. Not all of it, but enough that he might run out sooner than he'd like.