The fourth horseman in the line-up is the Tzeentch Chaos Lord -- Lord Deceiver. As befits Tzeentch, this horseman will be a sorcerer rather than a lord. The sorcerer is mounted on another chaos knight steed and has in his possession a force weapon and a bolt pistol. When equipped with the Mark of Tzeentch and a pair of psychic powers, the points value rapidly pushes up toward the high one hundreds, or just below 200.
The conversion work consists of a possessed chaos marine back pack attached to a regular chaos knight torso, legs and steed, with the Tzeentch chaos marine head and shoulder pad. The left arm is the force weapon from the chaos terminator lord set.