I do believe that's the first time I have ever seen that spell used...
Definitely the first time I've ever seen Tree Shape used:
2 problems. 1: You need to be either a druid or a ranger to cast the spell (and we all know belkar isn't around and even if he was, he can't cast squat) and 2: Your equipment changes too.
I'm guessing V is a good 800 feet away working an illusion right over top of the people.