Skeleton Horsemen

Skeleton Horsemen is a Tomb Kings melee cavalry unit introduced in Total War: Warhammer II with the Rise of the Tomb Kings DLC. Amidst a churning cloud of heaved-up sand, these Undead warriors charge their foes with supernatural determination.

Description
Regiments of Undead horsemen race across the sandy planes mounted on the fleshless remains of their once-proud steeds, weapons lowered as they gallop towards their foes. These skeletal riders drive their heavy spears into their foes with bone-jarring force, using well-aimed thrusts that punch clean through torsos and rip open throats in a spray of blood. Those not impaled by the cavalry rider's razor-sharp spearheads are trampled into the ground by the thundering hooves of skeletal steeds. When the Liche Priests summon the Tomb King's army from their sandy graves, fully formed cavalry columns stride out of the pyramids at the head of the legions. When the enemy is sighted, the cavalry regiment's hornblower signals the charge and a deep unsettling discord reverberates about the desert. This otherworldly sound shakes the dust from statues, and a disquieting feeling of dread permeates across the battlefield. As one, the Undead steeds gallop towards their quarry, the skeletal riders raising their shields and lowering their spears in perfect unison. It is a brave foe indeed that does not flee as these deathless horsemen bear down upon them.

Strategy
Weaker light cavalry really only suited for attacking warmachine crews, weapons teams, and ranged units unable to defend themselves in melee. Anything else will be able to fight them off and only be tied up dealing with them. Rear and flank charges are not impactful enough to change this by much.