Battle Bones transport vehicle from the vintage Masters of the Universe toy line.

Once a king among his species, Battle Bones was the reanimated skeleton of a dinosaur-like creature whose remains had rested, undisturbed, for uncountable ages. Skeletor magically raised and controlled him until the Sorceress broke the spell and gave him a voice. Thenceforth, Battle Bones vowed to aid the Heroic Warriors.

According to the Grayskull Wiki, Battle Bones’ biggest appearance was in the mini-comic “Skeletor’s Dragon”. Here Battle Bones is unearthed and reanimated by Skeletor who then uses a spell to make the creature his obedient slave. After He-Man defeats Skeletor, the evil lord flees, abandoning Battle Bones who is freed from Skeletor’s spell and given a voice by the Sorceress. Battle Bones vows to join the heroic warriors and serve them. Battle Bones would make a brief cameo in another mini-comic, The Stench of Evil were the heroic warriors ride him out to face off against Stinkor, since being a skeleton he is unaffected by the foul smell.