Skeleton Warrior

From Brickipedia, the LEGO Wiki.

A skeleton warrior is what the evil skeletons from the 2007 castle theme is called. There are two colors of them, white and black. Many wear armor. Weapons they use include sythes, flails, spears and axes. Skeletons sometimes ride skeleton horses and dragons.

Skeletons are under the leadership of the Evil Wizard (necromancer). They show no emotion and do the bidding of the Evil Wizard.

Skeletons tend to attack is mass swarms to strike fear into an enemy.

The skeletons are not good in strategy, but the black armored skeletons are decent in strategy, so they lead the army.