Vorpal Archdragon (Spellcaster)

Vorpal dragons were not created by some ancient divinity nor born of a specific realm or force. Their birth was an arcane accident, the result of unstoppable magic contacting immovable beast. In unknowable ancient ages, the first jabberwock was wrought by the Eldest and the first vorpal sword was wrought in turn to slay the beast. When that very first blade went snicker-snack for the very first time, tasting the primeval lifeblood of the draconic Tane, the first vorpal dragon was born.

Vorpal dragons are most notorious for their keen vorpal magic. Even the least of these dragons can sever a foe's head in a single lucky stroke. Unusually, however, the subject survives as a bipartite creature: a headless body controlled by a detached head that still thinks and speaks, and which can outlive said body's destruction. It's not uncommon for would-be dragonslayers to be sent home carrying their own heads under one arm as a lesson in humility. The unluckier ones, alas, may be kept as trophies—and, in a very literal sense, conversation pieces—while the dragon devours their greater portion. Some might even wear their favorite severed heads as a macabre necklace.