ummm am i supposed to shoot the wizard
Not really. He's just misunderstood. Is he spawning minions to hurt you? Kinda. But mostly it's the evil wand's fault.
If you do shoot him, he'll need to take a break to recuperate. He's nice enough to let you join him at his campfire though.
Basically the theme of the jam was "breaking the rules" so taking a "break" kinda fits that. And having an enemy that you're not really supposed to shoot also breaks some of your expectations.