Skeleton Warrior

Behavior
Skeleton warriors flock to The Skeleton King if it is nearby.

Spawning
These enemies spawn in caves holding either a sword or bow. The ones with bows have no quiver, the arrows appear in the bow. They seem to have an infinite amount of arrows.

They also may spawn with armor. Their weapons match their outfit, except for Halloween. On Halloween, they spawn with costumes.

They can pick up other items, but they can't spawn with them.

On Halloween, they can spawn in graveyards. Also, their spawn rate is increased. If the Halloween-only Skeleton King boss spawns, their spawn rates increase even more.

Drops
When killed, Skeleton Warriors drop at least one bone. On Halloween, they may also drop a part of their costume that wasn't battle-worn.