|Defeated By||Takashima Yuna, Minowa Gin, Inubouzaki Itsuki, Miyoshi Karin|
|Notable Kills||Doi Tamako, Iyojima Anzu, Aided In The Death of Minowa Gin|
The Scorpion Vertex (スコーピオン・バーテックス, Sukōpion Bātekksu), is an enemy of humanity, and the fourth Vertex the Hero Club encounters. It is based on the constellation Scorpio, The Scorpion, and is one of the most powerful Vertexes in existence.
A yellow face-mantle above a carried orb containing a pulsating bubble. Sports a long tail comprised of multiple spheres tipped with a powerful stinger. This stinger contains a venom so potent that it can cause a Hero to experience immense swelling from even a light scratch or glancing blow, like in the case of Iyojima Anzu.
Befitting its name, the Scorpion Vertex carries a sting so powerful that it can break a hero out of Mankai with a single strike, and can utilize its tail to shove/disrupt it foes.
This Vertex serves as the front-line for the trio of the Scorpion, Cancer, and Sagittarius Vertexes. Its powerful single-target attacks and disruption make it a force to be reckoned with, but when united in its trio, it is nearly impossible to defeat.
Works in tandem with the Cancer Vertex and the Sagittarius Vertex in order to destroy the world.
- This Vertex was able to destroy Miyoshi Karin's Mankai with a single sting.
- This Vertex's soul is located inside of the orb it carries; its interference tactic is multiplication. Upon emerging, this soul channels briefly while rotating and emitting light, before splitting into a cluster of at least thirteen identical copies of itself; Itsuki Inobuzaki's wires made short work of it: "There may be many of you, but I'll get you all at once!"