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Diamondhead (Nova enemy) (Marvel Comics)


(Arch Dyker)

Power Level:
Game system: DC Heroes Role-Playing Game


Diamondhead is a villain who plagued the early career of Marvel Comics’ Nova (Richard Rider). Diamondhead appeared early during the book’s run, in 1976, and even back then he was meant to be a retro, mid-Silver Age  baddie.


  • Real Name: Arch Dyker.
  • Marital Status: Unrevealed.
  • Known Relatives: None.
  • Group Affiliation: Servant of the Sphinx.
  • Base Of Operations: A hidden base on Long Island.
  • Height: 6’0” Weight: 300 lbs.
  • Eyes: Black Hair: None (as Diamondhead) Brown (as Dyker).

Powers and Abilities

Diamondhead is a rather powerful brick . He’s strong, he’s pretty much invulnerable and his fists hit extremely hard. He’s also a Golden Gloves  boxer, though he tends not to fight as a boxer outside of a ring.

He is direct in combat, getting in close to opponents, and trusting his strength to win the day.


Arch Dyker always wanted to be a great and terrible villain. Even when playing super-hero with other kids, he wanted to be the Red Skull or some other villain. He also beat the kids pretending to be heroes.

He trained up his strength and became a boxer as a teenager, even becoming a Golden Gloves champion. But that was not enough and he remained a relatively mediocre criminal.

His life changed when he sneaked into the South Hamption Science Institute. His plan was to steal some of the pure gems that were used in the laser laboratory. However, he tripped and fell right into a diamond-powered laser beam, which gave him his powers.

Diamondhead then planned how he would reveal himself to the world. He even trained in an expensive “danger room” setup he owned somewhere in Long Island. Howbeit, the room was underpowered for him.

Against the Sphinx, part 1

Diamondhead was one of the Long Island villains who were contacted by the mighty Sphinx and made into his reluctant agent. Then he heard that another such agent, Powerhouse, had been recently defeated by Nova. Dyker reacted by launching a spectacular one-man crime wave, successfully looting banks and money trucks until the police cornered him.

Diamondhead vs. Nova (Marvel Comics) during the 1970s

He then surrendered so he could get into the prison, steal the box Powerhouse was carrying when he was arrested, and walk out. Nova intercepted him, but the fight was inconclusive. Dyker escaped. But Nova, underestimating Diamondhead’s might, thought he had been killed by a collision.

Diamondhead was immediately contacted by the Condor. He offered Dyker an alliance against the Sphinx. Diamondhead agreed, and they began working together. They broke Powerhouse out of police custody, and managed to capture Nova when he tried to intervene.

Against the Sphinx, part 2

Condor’s equipment revealed that a spaceship belonging to those who had empowered Nova was hidden in orbit around Earth. Condor decided they should loot it of weapons which could be used against their enemy, the Sphinx. Brainwashing Nova to help them, they modified Condor’s craft to travel into space. Then they headed toward the Xandarian craft.

Nova broke free of Condor’s control while there and battled them. But the trio nevertheless seized some of the weapons and escape.

The three began assaulting the Sphinx’s bases, and eventually came face to face with the Sphinx himself. Their assault failed, in part due to Nova returning to battle them. Afterwards :

  • Condor was rendered mindless and turned into a real condor.
  • Powerhouse had his memory erased again and was transported to London.
  • Diamondhead was trapped under a mountain.


Diamondhead was freed when the military used explosives to clear the area for a new base. He returned to New York seeking revenge on Nova. Forcing ordinary criminals to act as bait, Diamondhead trapped Nova by collapsing a building on him.

Leaving Nova for dead, Diamondhead celebrated until he was contacted by a mysterious voice speaking through his television set. The voice (actually Dr. Sun) told him that Nova was still alive. It ordered Diamondhead to capture him. Dyker angrily refused just as Nova and the Comet arrived and attacked him.

Diamondhead beat them. Then he angrily ran off, trying to find the source of the voice in his television.

Unsuccessful in this, he later eavesdroped on a conversation between Crimebuster and the Comet. When they mentioned searching for Nova, Diamondhead stowed aboard Crimebuster’s Crime Pod. He was still on board it when it was transported on board the Xandarian spaceship, now under the control of the Sphinx.

Diamondhead in space

Thus Diamondhead was forced, against his violent objections, to become part of the crew for the journey to Xandar.

They arrived at Xandar in the middle of a Skrull invasion. The Sphinx took advantage of the situation to extract the information he required from the Xandarian computers. The Egyptian absorbed immense power from this. Thus, when Diamondhead, Comet, Crimebuster and the Fantastic Four tried to engage him, he easily brushed them aside.

He then left, abandoning the others. Stuck, the Earth villains joined the Xandarian defense against the Skrulls. Nova, Comet, Crimebuster, Diamondhead and Powerhouse spent several months helping fight the Skrulls, earning the name Champions of Xandar.

War on Xandar, part 1

During the war, Diamondhead led a battalion of Nova Corps soldiers into a Skrull ambush on Epyrus 7. He then released a banned Xandarian bacterial weapon which attacked both sides.

Nova was forced to disintegrate the victims with a gravimetric pulse. The incident was so traumatic that the he and the few other survivors had the memory suppressed. But Diamondhead, who enjoyed the carnage, remembered.

Diamondhead, Crimebuster and the Comet then accompanied the Nova Corps in their mile-long ship on a foray against the Skrulls. Diamondhead betrayed his team-mates to the Skrulls, helping these board the vessel. Crimebuster discovered this and was killed by Skrull soldiers in front of the Comet.

War on Xandar, part 2

Immediately, the Comet and all the Nova Corps were banished to another dimension by Diamondhead, who used on-board lifesaving equipment. The bloodthirsty Skrulls disliked this. They blamed Diamondhead for preventing them from killing their enemies. Still, the alliance held.

The ship returned to Xandar. Once past the Xandarian defences, the Skrulls shapechanged and attacked. Nova, Powerhouse and the visiting spaceknight Rom helped the Xandarian civilians resist the invasion. Nova attacked the ship directly, breaching the hull. He then fought and spaced Diamondhead.

After gaining control of the ship, Nova summoned back the Champions and the Nova Corps. The Xandarian forces won and the surviving Skrulls were arrested. Diamondhead was left drifting in space.

Back to the homeworld

Diamondhead ended up a prisoner in an exhibit on the Stranger’s world. When Quasar and the Overmind arrived there, Diamondhead was one of the prisoners who fell under the Overmind’s sway. That lasted until the Overmind was beaten by Quasar and the Squadron Supreme.

Freed from captivity, Diamondhead joined other captives from Earth in a convoy of cobbled together spaceships. This eventually got them home.

Diamondhead returned to crime, becoming a professional hitman. When he unknowingly killed one of the Corruptor’s agents, the Corruptor took revenge by hiring Nova’s delivery service to deliver an explosive package to Diamondhead. The two were flung out of the building by the explosion and began to battle one another.

Nova overcame Diamondhead. However, the villain escaped after reminding Nova about the events on Epyrus 7. This left Nova stunned when the memories returned to him.

The villain ran into Nova again on his next job, fighting him and Captain America. When Nova regained full memory of Epyrus 7 during that battle, he flew into a rage. Borrowing Captain America’s energy shield he sliced through Diamondhead, shattering him into pieces.


See illustrations.


Diamondhead is arrogant, and supremely confident in his invulnerability and superior strength. He is constantly amazed when he meets someone stronger than himself. Even if it’s not the first time they’ve proven it.

While he sees himself as a criminal mastermind, he really only has his strength going for him. Thus, his dreams of success often cause him to lose focus on what he’s doing. For instance, while practising in his own danger room, he once got so distracted with his future plans that he was caught by surprise by his own destructroid, which nearly finished him off.


“Bah ! I’m already stronger than these fools ! I’m more powerful than anyone ! And very soon the world will know me, and tremble, when they hear… the deadly Diamondhead is ready to strike !”

“There’s no need for words, creep. My fists do my talking for me.”

“Arguing ! Always arguing, kid, you listen or Diamondhead’ll smash you inta the ground. Got that, punk ?”

“I’ve spent my entire life working to perfect my strength — and now nothin’will ever stop the steel-smashing powers of Diamondhead !”

“Bah ! What do I care ? My diamond-skin’s harder ’n any laser !”

“I told ya, punk — I told ya Diamondhead’ll be the death of ya ! And you just laughed me off, didn’t ya ? Well, I’m struttin’ proud and strong — and you’re pushin’ up daisies ! I told ya, you wuz a punk, kid ! And now I finally proved it !”

“Look at all these diamonds… they’re just like me ! They’re stronger’n anythin’. Nothin’can cut ’em. They outshine all the other crud !”

“Can the hearts and flowers, mister. I’m sick ’a hearin’ ya complain all the time. Ya wanna die so badly, let Diamondhead smash ya one !”

[Explaining his betrayal] “Instinct, kid. It’s the way I grew up, y’know ? Always looking out for number one.”


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Game Stats — DC Heroes RPG Print Friendly

Tell me more about the game stats


Dex: 04 Str: 13 Bod: 10 Motivation: Power
Int: 03 Wil: 03 Min: 04 Occupation: Criminal
Inf: 05 Aur: 04 Spi: 04 Resources {or Wealth}: 007
Init: 014 HP: 040

Cold Immunity: 02, Flame Immunity: 02, Jumping: 02, Skin Armour: 05, Systemic Antidote: 05

Bonuses and Limitations:
Skin Armour also works against energy attacks (+2).

Acrobatics (Climbing): 08, Charisma (Intimidation): 05, Martial Artist: 05, Weaponry (Xandarian): 05

Bonuses and Limitations:
Acrobatics (Climbing) is a Powered Skill and Contingent Upon STR.

Life Support (No need to breathe).

Condor (Low).

Altered Anatomy, Distinct Appearance.

Game Stats — DC Adventures RPG Print Friendly

Tell me more about the game stats

Diamondhead — Averaged PL10.2

13 10 1 1 5 1 0 2


The Gift of Diamonds ● 17 points ● Descriptor: Mutate
– Powerful Jumps — Leaping 2
– Hardness — Protection 5, Impervious
– Altered Body — Immunity 4 (cold and hot environments, no need to breathe)
– Makes his own handholds — Enhanced Skill (Athletics) 1 (Limited 1 to Climbing)

Combat Advantages

Diehard, Power Attack, Ranged Combat 4.

Other Advantages

Benefit (Wealth).


Athletics 1 (+14) (Limited 1 to Climbing), Close Combat: Unarmed 3 (+8), Deception 2 (+4), Expertise: Criminal 2 (+3), Insight 2 (+2), Intimidation 3 (+5), Perception 4 (+4), Persuasion 1 (+3), Ranged Combat: Xandarian Weaponry 2 (+7).


Initiative +1
Unarmed +8, Close, Damage 13


Dodge 6 Fortitude 13
Parry 7 Toughness 16
Will 4

* Without Defensive Roll


  • Power Diamondhead is always looking out for number one, going to any lengths for ever greater power.
  • Arrogant Diamondhead tends to underestimate opponents, even known quantities, relying on his might and his false sense of cunning to carry him through.

Powers Levels

  • Trade-off areas. Attack/Effect PL 11, Dodge/Toughness PL 11, Parry/Toughness PL 12, Fort/Will PL 9.
  • Points total 114. Abilities 66, Defences 14, Skills 10, Powers 17, Devices 0, Advantages 7. Equiv. PL 8.

By Sébastien Andrivet and Gareth Lewis.

Source of Character: Nova v1.

Helper(s): novaprimepage.com , Roy Cowan. M&M stats by Pawsplay.

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