Tips: -Bring holy waters and use on the first round. The Shambler has 33% PROT, is Eldritch, and has one action per turn. The tentacles have a weak attack initially but will buff themselves with +50% DMG and +25% PROT every turn, stacking up to 3 times. If you kill one or both of the tentacles he will frequently try to resummon them, but if both are alive he will cast a stress attack and shuffle the party. The Shambler will cast either Bleed or Blight on your entire party and also summon 2 tentacles. He will shuffle your party from the onset so preshuffle them yourself, but bring heroes with mobility and equip skills with movement/attacks from a variety of places.

This increases stress received by 40%, monster ACC 12.5%, DMG 25%, and crit by 5%, these values slightly worse on Stygian difficulty.

The fight takes place in the darkness(0 light) and you cannot increase it with torches/skills. Be warned as this is a tough battle so wait until you've either completed the mission or have a campfire at your disposal to recuperate/buff up otherwise you may defeat the Shambler but have to abandon the mission. Some people create Shambler hunting parties and bring trinkets specifically for low light combat. The odds of spawning him at 0 light are very rare on apprentice(1%) and increase to 8% on veteran and 12% on champion. You can encounter the Shambler one of two ways: randomly finding a Shambler's altar curio and using a torch on it or running around on 0 light and he will find you randomly in a hallway.

Darkest dungeon how to kill shambler