Minecraft Dungeons:Horse

The Horse is a passive mob in Minecraft Dungeons that exclusively spawns in the Lone Fortress inside a secret room. It cannot be ridden unlike the horses from the base game and comes pre-equipped with a Chest and a Saddle, which cannot be equipped onto horses in the base game.

Trivia

 * It uses the old horse model before Update Aquatic in the base-game.
 * Despite being a mob in game, it cannot be interacted with in any way and it isn't even able to move.