The wizard has a weird bug where when orb speed increases too much the radius of the orbs orbit begins to tighten, which means on late rounds where you get loads of xp the rare talent that increases orb speed on each level up can pull in your orbs so close to the wizard that they can barely hit enemies in time, really hurts orb builds in the late game. I'm also sure this wasn't an effect of that one gain orbs ability that pulls the orbs in as i didnt have it this run.