Sorcerer orbiting ball lighting are currently breaking on collision with terrain. Walls, doorways, room columns, decorations.
Regardless of whether it is intentional or a bug, it makes tight spaces (like Kor Dragan) a miserable play experience. You’re basically getting the resource sapper debuff because of terrain.
Cross-posting the sorc thread here because I think this should be considered a bug.
I added short videos to that post to illustrate the issues.