Ramsey Rosso (Earth-1: Pre-Crisis)

"I don't want violence. I simply wish to save the world."

- Ramsey Rosso

Ramsey Rosso is a scientist who was hellbent on protecting humanity using his Dark Matter-powered blood, later operating as the serial killer known as Bloodwork, as an adversary of The Flash.

Reign of Terror
In December 2019, Rosso started infecting The Flash, then many others, only to be incarcerated in A.R.G.U.S.

Visited by Frost
In February 2020, Rosso was visited by Frost in A.R.G.U.S.

Helping the Reflections
In April 2020, Rosso was visited by mirror versions of Kamilla Hwang, David Singh, and Iris West-Allen in order to obtain his mutated blood for McCulloch's plan to escape the Mirrorverse.

Escape from A.R.G.U.S.
Whilst still a prisoner at A.R.G.U.S., Rosso was recruited by Magog and transported to Keystone City in 2049. Whilst there, he began a rampage on the Van Buren Bridge until engaged by Martian Manhunter. After Magog's defeat, Rosso was not returned to his cell, despite the other villains being returned to where they came from.

Former Powers

 * Cosmic Awareness: Rosso was aware of the creation of a New Multiverse.
 * Retrocognition: Rosso retained his memories from before the Crisis.
 * Haemokinesis: Rosso had the ability to control and manipulate blood, and consequently control the body. Through this ability, Rosso was able to feed on the adrenaline-infused blood and increase his own strength.
 * Blood Constructs: Rosso could construct small sludge-like blood from his body and transfer it to another person. Rosso was also capable of dematerializing himself into a similar sludge.
 * Immortality: With the Dark Matter blood in his body, Rosso was healed of his HLH and claimed to be able to survive any apocalyptic events, essentially achieving immortality.
 * Infection: With a single drop of his blood, Rosso could infect human and metahumans alike. However, due to the accelerated healing nature of speedsters, Rosso's infection could be slowed down when his blood enters their systems. When his victims were infected, they possess exceptional abilities, including immortality, superhuman strength and durability.
 * Mind Manipulation: During the infection phase in speedsters' bodies, Rosso has the ability to manipulate their minds and construct mental images.
 * Possession: Rosso was able to speak through his infected victims.
 * Transformation: At full strength, Rosso was capable of transforming into an enormous and monstrous creature, which allowed him to take on other heroes, such as The Flash.
 * Superhuman Durability: Despite being shot with a bazooka, Rosso did not retain any form of significant nor visible injuries.
 * Superhuman Strength: Rosso was able to easily grab the neck of two Reflections and strangle them with ease.

Former Weaknesses

 * Hemophagocytic Lymphohistiocytosis (HLH): Prior to becoming a Metahuman, Rosso suffered from HLH and was the major cause for his search for self-preservation.