Blood dragon

Blood dragon, also known as the Bane of the Purebloods, was an elven spell oft used as a doomed elven mage's revenge.

Effects
When cast by a pure-blooded elf, the spell consumed their life, first, and then caused an eruption of smoke-like corrosive venom to rise from where their veins were touched by a dragon's tooth during casting. The force turned into a red, dragon-like construct, wingless and dripping gore from its jaws, which attacked a being designated as the spell was cast.

The creature began its attack as soon as the caster finally died, pursuing its target over solid or liquid surfaces and striking with vicious force, but decaying over the next six minutes. Its attack sheared away many magical defenses progressively and quite effectively; if the target had any amount of the caster's blood on itself, then no magical barriers would apply against the dragon's attack.

The force's attack withered the flesh of its target into a gray, rotting mass. It was possible to stop the dragon through damage, albeit the creature defended itself quite well.

Components
Besides verbal and somatic components, this spell consumed the caster's life, and required at least one object made of dragon teeth to touch the caster's blood during casting.

History
Ildilyntra Starym employed this spell against the Coronal, Eltargrim Irithyl, in in an attempt to prevent the Opening of Cormanthor.

Appearances

 * Novels
 * Elminster in Myth Drannor