Slaanesh's Harvesters (Doomfire Warlocks)

Slaanesh's Harvesters (Doomfire Warlocks) is a Dark Elves magical cavalry unit introduced in Total War: Warhammer II with The Queen and the Crone DLC. Slaanesh has an insatiable appetite for Elven souls, and the Harvesters are only too happy to oblige!

Description
When Malekith first learned of the Prophecy of Demise, his initial wrathful blow fell against the Doomfire Warlocks of Hag Graef. Fearing their rebellion, the Witch King cursed them with hollowness, and their souls have teetered between the mortal world and the Realm of Chaos ever since.

Thus, whilst other Elves fear Slaanesh as a potential fate, Doomfire Warlocks feel the Dark Prince's grasp on their souls grow with every passing day. As the grip tightens, dark runes blaze into life on their flesh, an unholy fire that creeps slowly across the skin. If this process is not arrested before the Warlock's entire body is swathed in flame, his soul is snuffed out and consumed by the Dark Prince. This fate cannot be thwarted, for no mortal can long deny rapacious Slaanesh. It can, however, be stalled if the Warlock sacrifices others in his stead -- the purer or mightier the soul, the better.

Doomfire Warlocks descend upon villages in the dead of night, seeking victims to slake Slaanesh's thirst. Cloaked in shadow, they pass like phantoms through defences, stealing prey from their beds before vanishing into the night. When a Dark Elf army musters, the Warlocks gather, hoping to capture mighty warriors to fuel their rites. To aid this cause, they infuse their scimitars with numbing curses that strip a foe of his sense with a single scratch. Alive but mindless, the victims are led from the battlefield to the rituals that will keep Slaanesh at bay for a few days more.

Strategy
Doomfire Warlocks are very good because they come with two bound spells. These warlocks have two different ones, Soul Stealer and Word of Pain. Soul Stealer is a great spell that allows them to steal health from enemies in a radius. This makes are useful for climactic fights with high value units clashing. Word of Pain is their other spell and makes the melee attack stats of an enemy negligible. Both are useful, but should be used wisely, as they can only cast their spells while above 50% health. Be careful to use their utility earlier rather than later.

Aside from their spells, they are good combatants with magic and poison damage as well as high physical resistance. Although their low armor and low melee defense ensure they will not endure forever. As the tool tip says they are also quite fast, so are useful for chasing off routing units and harassing. All in all a deadly fast moving unit that brings unique utility spells to the battlefield.