Complex sentence: Probably one of the most spectacular creature created by TSR, this underrated monster was only seen in the "Spelljammer" monstrous compendium and one other appearance in the fourth book of the Cloakmaster Cycle series of novels.
Split into simpler sentences: Probably one of the most spectacular creature created by TSR. This underrated monster was only seen in the "Spelljammer" monstrous compendium and one other appearance in the fourth book of the Cloakmaster Cycle series of novels.