[5] Blastaar is a member of an alien race known as the Baluurians, of the planet Baluur in the Negative Zone (in Sector 56-D, as charted by Reed Richards).

[7] Over the following years, Blastaar would repeatedly return to Earth to attempt to conquer it and fight the Fantastic Four many times, as well as the Avengers, Thor and other superheroes.

[16] He and his forces seize control of Negative Zone Prison Alpha and recruit a number of the imprisoned Earth superhumans there into his army.

[17] Later he is approached by the Raptors Talon and Razor, who offer Blastaar the Cosmic Control Rod they took from Catastrophus, in exchange for his assistance in influencing the outcome of the War between the Shi'ar and the Inhumans.

[18] Following the climax of the war, Blastaar had an encounter with Nova and his fellow Centurions who were in the process of battling renegade Kree and Shi'ar soldiers.

[volume & issue needed] Blastaar and his forces allied with the consortium of galactic rulers who fought off infection from the Cancerverse.

[volume & issue needed] Blastaar made a bid to become King of the Kree, Shi'ar and Inhumans by staging a coup against Medusa shortly after the depletion and exhaustion of her armies following Thanos Imperative.

[19] Blastaar has superhuman strength and endurance, being unaffected by conventional weaponry and extreme variations in temperature and pressure.

He is also highly trained in the arts of warfare of and by his race and has access to advanced technology from his home world such as starships and plasma-based weapons.

In 2022, Comic Basic ranked Blastaar sixth in their "Top 10 Most Feared Nova Villains of All Time" list.