I sneaked close to him, placed my party all around a circle and teleported in the middle of it, then its really easy wipe out his armor and cc perma even before he transforms. U have 2-3 turns until minions start doing significant dmg

Was a tough fight for me and my party, anyway. You can use Healing on him and it will do damage to him (Like this one perk with a blue guy standing in T pose, it damages him and anyone else too I guess). I also used oil barrel below him, and then Sebille with blood arrows and a crippled skill and after I hit him it created necro fire from fire, because his blood is cursed.

Not that I would consider letting this nasty piece of work walk off scot free after all the hideous **** he does, but does he appear anywhere else later in the game if the player decides to let him go?

he's immune to teleportation for me. he's not fortified. the game's just being stupid, i guess. is teleportation considered "slipping?" he's immune to that, but so is my party and i can teleport them.

if you can't keep him CC'ed? that means nothing to me. write the words out like a big boy.

Before meeting meistr Siva I kinda wandered around the Island, killed him and only after the dialogue prompt i realized he is a part of some quest. Same happened to that werewolf mutant in cloister wood. Killed him with my level 9 dwarf ranger and suddenly i get some text prompt from the Altair, same with the cultists on the blood island. Same thing happened in Arx when i out of the *** found some undead geomancer and killed her in one turn only to later realize they were a part of some quest as i received greetings and congratulations on "my quest" from person i never met before. This game has wonky writing and path making that's for sure. The last battle was also really anticlimactic with the plot twist.

All I need to do is break his magic Amour and charm him. His minion will take him out for me.