Leader of the Dark Matter Thieves

 

Name: Lord Boros
Origin: OnePunch-Man
Gender: Male
Classification: Alien
Age: Unknown, at least 20 years old (it took him 20 years to reach Earth)
Powers and Abilities: Super strength, speed, durability, enhanced senses, skilled brawler, energy blasts, regeneration (low-high [his regeneration is even greater than Melzalgald's])
Weaknesses: Nothing notable (though his power is restrained by his armor) | Meteoric Burst puts a heavy strain on his body through prolonged use
Destructive Capacity: Likely at least small island level+, possibly higher (comparable to casual Saitama before their actual fight began) | At least continent level+ (more severely damages his own ship than Saitama had with his casual moon jump.  His Planet Buster Roar Cannon is said to be capable of razing the surface of the planet.)
Range: Average human melee range | Several kilometers with shockwaves, planetary with energy blasts
Speed: Massively hypersonic+ | Sub-relativistic+ (kept pace with Saitama and proves capable of catching up with Saitama's body after sending it flying [his strikes are fast and powerful enough to send Saitama to the moon in seconds])
Durability: Likely at least small island level+, possibly higher (survived a casual punch from Saitama before their actual fight began [same Saitama sent one of the Dark Matter Thieve's artillery shells back at their ship]) | At least continent level+ (survives casual attacks from Saitama comparable in power to his casual moon jump.  Was fatally wounded by Saitama's Serious Series: Serious Strike, though did survive it long enough to hold a brief conservation with Saitama)
Lifting Strength: Class G (comparable to casual Saitama before their actual fight began) | Class G+ (superior to Golden Sperm and Tatsumaki)
Striking Strength: 
Class EJ | Class YJ+ (comparable to casual Saitama and his casual moon jump)
Stamina: Superhuman+
Standard Equipment: His armor | Nothing notable
Intelligence: Skilled and experienced combatant.  Never met anything closely resembling a peer in combat until his final battle with Saitama
Notable Attacks/Techniques:

- Meteoric Burst: Using his latent energy as a booster, Boros brings out "power beyond the limit of living beings".  Boros himself equates the power as doing anaerobic exercise, causing his body immense strain.

Meteoric Burst
Meteoric Burst

- Planet Buster Roar Cannon: Boros' ultimate attack.  By gathering all the energy he has in his body, Boros releases a powerful energy beam of destruction with the power to potentially raze a planet's surface.

Notable OBD Victories:

Akuma (Street Fighter) - Akuma Profile
Madara Uchiha (Naruto) - Madara Profile

Notable OBD Losses:

Mundus (Devil May Cry) - Mundus Profile

Other:

Boros Unleashed
Boros Unleashed

Key: Power Sealed | Power Unsealed