While you will take some damage, it isn’t much. Feather Fall and Misty Step are spells that could help here. Fixing the Arcane Tower elevator generator here will disable Arcane Turrets. You’ll have to fix the elevator generator in the Arcane Tower regardless of how you entered the Arcane...
Made several improvements to the Poltergeist enemy: they are now revealed on being attacked or hit with Radiant Spirit Guardians; they will not turn Invisible again if they are still in a character’s See Invisibility aura; in Balanced and Explorer Mode, they have disadvantage on Dexterity Saving...