In Lower Guk a live Froglok shaman is PH. All other live creatures will add, so best to attack in the alcove.
Warning - shaman has SoW and will spam heal under 40% health (with unlimited mana). He also casts root (it's a spell, not a proc like the undead frogs) and a disease-based DoT. I resisted all the roots, but the DoT landed even with resist buffs.
His unlimited heal mana is a pain, but he only heals to 50%. If you can get him down under 15%, he will stop healing. I used a stun and bash combo when he was at 40%. Once he gives up healing, he'll turn and run away.
Be careful when he runs! He starts to head down the stairs and will warp when he gets to the water line - appearing at the other side where there are more frogs. If you chase him down the stairs you will fall in the water and get caught in the space between a boulder and wooden pathway. While you are struggling to get out of the water, the frog will run by a bunch of adds. If mobs in LGuk still con green or above to you, be prepared to face a horde of frogs and minos regardless of faction. If you can't keep the frog in the alcove, you will be besieged by adds very quickly. Prepare accordingly.
Edited, Jun 11th 2021 1:01pm by Ardnahoy