Mesmer Class Mod is a mod for Darkest Dungeon, created by ActionJack.
Mesmer. Manipulator of Minds, Conjuror of Illusions. Some might call it “parlor tricks”, but for a true master Mesmer, a mental prison is as good as iron bars, and imaginary wounds can be made painfully real. Death is but in the mind, yet mindful of death is as fatal as dagger in the heart.
A backline supporter, who uses her ability to make her companions harder to hit. Also an array debuffs to cast one’s enemies to cut down on their threat
Simply copy each of the folder into the DarkestDungeon game folder (usually here C:\Program Files (x86)\Steam\steamapps\common\DarkestDungeon\)
This should copy over and add some files to each of the folder. See below for instruction how to add the Effects and Localization.
It would also be a good idea to back up some files before hand.
Note: consult the effects_That_Need_To_Added.txt file for additional instructions or the game will crash!