Don't know if this is new or not, but when i was fighting Astrogha he stayed bug, like some kind of softlock, im cold sorc and my theory is when he want to teleport he got some kind of stun from the elementals, and after that teleport he didn't attack, didn't summon towers or other kind of attack (only his aoe buf and teleporting a lot) gonna try to record in a video if i can make it softlock again that cus i don't know how i did that lmao