The path of the Undead Stalker is a straight one. If the Undead Stalker should ever take a level in a different class after becoming an Undead Stalker, they may never again gain Undead Stalker levels. Emotions are first on their list. Channelers are monks who realize that emotions need not be eliminated, only brought under control. To channelers, emotions are a source of strength, as long as one knows how to remain objective.
Monks are the most common channelers, though the rare rogue or fighter becomes a rogue.
Druids and rangers rarely have the control neccesary to become a channeler, though the abject neutrality of druids sometimes puts their ideals in line with the channeler's. Cleric channelers vary with each god. The channeler is proficient with all simple weapons, as well as all weapons that a monk is proficient with. The channeler is proficient with light armors but not shields. Note that spell failure chances of armors and shields are applied to all channeler abilities.