Minecraft Dungeons:Skeleton Horseman

A skeleton horseman is an undead powerful mob that spawns randomly in various levels $$. The player must be on adventure mode or higher except in Cacti Canyon, where it rarely spawns in default mode to encounter it. When spawned, a music soundtrack is played.

Spawning

 * (Adventure or Apocalypse)
 * (Adventure or Apocalypse)
 * (Adventure or Apocalypse)
 * (Sometimes)
 * (Apocalypse only)
 * (Adventure or Apocalypse)
 * (Apocalypse only)
 * (Apocalypse only)
 * (Adventure or Apocalypse)
 * (Adventure or Apocalypse)
 * (In secret area)

Behavior
The skeleton horsemen have high hit points and require constant damage to be defeated. They are most dangerous in an open area, where they commonly gallop away from melee reach.

Whenever a hero approaches a newly-spawned skeleton horseman, it transforms into four skeleton horsemen that charge at the hero.
 * Spawn

They sometimes shoot at the player with a longbow, dealing extreme damage.
 * Basic attack

In Minecraft Dungeons Arcade, the skeleton horsemen are regular mobs instead of minibosses that only usually appear alone in the. They behave the same as the normal game.

Trivia

 * Rarely during Ancient Hunts, a single or less than 4 skeleton horsemen can spawn. They are also seen without a boss health bar.
 * An individual skeleton horseman can also be found in a secret area in the Dingy Jungle. This one has a boss bar however.
 * In Default difficulty, the skeleton horseman is the rarest powerful mob in the game, only spawning in the fossil area in the Cacti Canyon.
 * The first skeleton horse players find has a rider, unlike in the base game.
 * It's rare to find skeleton horsemen going solo.
 * Before 1.8.0.0, the skeleton horseman's boss bar would show one boss bar that only showed the current health of the nearest horseman and would change if the player attacked another horseman.