/dark MMs are the best AT for the one man healing farm. However, in order for the healing farm to be effective there are a few considerations to make note of. This healing farm takes place in the CoT temples that most people hate using the CoT pain crystals (red crystals). The heal being used is twilight grasp and require all your henchmen out and passive and within range of the twilight grasp.
1. Level of mission: The level of the mission determines the levels of the enemy spawns and the enemy spawns determine the level of the pain crystal. Pain crystals give a different DoT based upon the level. A +1 pain crystal will produce a higher DoT compared to a even con pain crystal. Since you need a target to use, you don't want one that will kill you in two hits. Generally a +2 mission works fine.
2. Obstacles: Is the area of the pain crystal free of cliffs and obstacles? A flat room with little to no obstacles are considered the best.
3: Enemy: Does the enemy run away from your sight or use debuffing attacks? The best enemies are ranged attackers that never move from one spot. Behemoths, Fire Thorn Casters, and Guides work well with this setup. Nerva Spectral Daemons and Earth Thorn Casters are very dangerous for a farm.
4. Other Powers: Darkest Night and Tactics are the only useful abilities for a healing farm. However if you have another MM with a perma immobilize or perma hold ability that would work well too. I prefer Tactics over Darkest Night because I prefer being able to hit more often. However, if you have Stamina run both.
