Arty picked up the note and chuckled as he read it. At least the guy had a sense of humor. 

Standing, he glanced around at the remaining fighters and caught sight of one ducking behind the tree just after the mage's body burned to ash. Poor guy. Getting cut in half was not a pleasant way to go. Not that Arty would know... Anyway, back to the bloke cowering behind the tree. Nobody else seemed to be interested in him at the moment, though skeletor over there had just freed up and might decide he wanted a shot. Best to get there first.

In furtherance of that goal, Arty tossed off a low-power bolt of lightning, not enough to do serious damage but enough to get his attention, and arced it around the tree to hopefully strike him in the center of his chest. "Hey! You there behind the tree! The party's out here!"