Gender: Male
Series: Kamen Rider:Ace Warrior
Motif: Stag Beetle/Diamonds
Rider Type: Anti-Hero (First)
Hero (Current)
Homeworld: Earth
First Appearance: Episode 3:The True Diamond Paladin
Last Appearance: The Eternal Joker
Number of Episode Appearances: 45
Actor: Matt Mullins
Kamen Rider Diamond Paladin

After the events of Kamen Rider Dragon Knight, Len now went in hididng after kit taylor's death, He now transforms to Kamen Rider Diamond Paladin to avenge his friends and to let go of his fear and depression.


While Len was In the Age of Dragon Knight Kit Rose to Take Adam's Place as Dragon Knight With a New Future Alongside Kit, Kase and His Father Just Then Kit was Killed by an Undead So he went to the Sanchez Residance thought that Jared Mccormick, Knew something about Kit's Death but He didin't awnser that Made Len so Angry He threw Jared McCormick to the Ground Mina came in with Food and She saw Jarred Being Hurt by Len So she recovered Him and Putted him on the Couch and they Started an Argument and Mina was so Mad at Len and Len was Confused (and annoyed) . Then when the King Undead is Destroyed he Opens up to Jared and they become friends.


For Len to change into Diamond Paladin, he inserts the sealed Ace of Diamonds (Category Ace: Change Stag) card & position the buckle in front of his waist. The belt expands automatically around his waist, like a deck of cards wrapping around. Kent makes an arm motion, clinches his fist, & yells out "Kamen Rider!" & flips a portion of his buckle. The buckle announces "Turn Up!" at this point. This causes a blue projection with a stag beetle image to come out before him, knocking Undead away. he then runs into the projection, which will complete the transformation into Diamond Warrior.


Ace Form

  • Height: 200cm
  • Weight: 104kg

Ability Perimeters

  • Punching Power: 2.6t, 260AP
  • Kicking Power: 4.5t, 450AP
  • Maximum Running Speed: 100m/5.4s

The Ace Form is the default transformation of all Rider Systems. Rider System-01 harnesses the DNA of the Stag Undead sealed within the A: "Change Stag" Rouse Card & fuses that DNA with Len via the Diamond Paladin Buckle Rider System, transforming him into Kamen Rider Diamond Paladin. This Rider form has no distinguishing capabilities or attributes apart from any other Rider except its gunslinger-oriented design; its ability to modify its capabilities with Rouse Cards is the only note worth mentioning.


Jack Form

  • Height: 200cm
  • Weight: 114kg

Ability Perimeters

  • Punching Power: 3.3t, 330AP
  • Kicking Power: 5.2t, 520AP
  • Maximum Jump Height: 118m
  • Maximum Running Speed: 100m/4.2s

The Jack Form is a combat extension of the Rider System which harnesses the power of Category Jack Rouse Cards (in the case of Diamond Paladin, the Jack: "Fusion Peacock") via the Rouse Absorber. Initiating the Jack Form extension transmogrifies Diamond Paladin's Rider Armor with the attributes & characteristics of the Peacock Undead's DNA, as well as enhancing Diamond Paldin's combat perimeters. The Jack Form imparts a number of enhancements; the first being the enhancement of the Diamond Rouzer with a bayonet attachment. This imparts a limited, but much-needed, melee capacity to the otherwise projectile-oriented weapon. On the outset, the J-Diamond Rouzer functions essentially the same. The second advancement is the addition of reinforced, golden-armor plating (embroidered with a diamond-peacock crest) which increases resilience to direct-impact damage. But the most drastic modification is the inclusion of wings, which enables flight for the Rider.

Gear & Accessories

Diamond Buckle

Designated "Rider System 01", this transformation device was the first Rider System developed by RIDER FORCE. intended as a mean to combat the Undead via the fusion of Undead DNA & human DNA. The Diamond Buckle was designed for specific compatibility with the A: "Change Stag" Rouse Card & harnesses the DNA of the Stag Undead. This model utilizes the "Turn-Up" mechanism to produce a stationary transformation screen, which initiates the fusion of Undead DNA with a human to produce the Kamen Rider transformation. Coincidentally, the transformation screen itself can act as a deflective wall against assaults.

Diamond Rouzer

Diamond Paladin’s primary armament; a hi-tech gun which serves as a weapon for combat & storage unit for Rouse Cards, including Proper Blanks. It has a built-in 'rousing' technology, which enables Diamond Warrior to "rouse" the sealed Undead's power to utilize personally. After activating Jack Form, the Diamond Rouser gains an enhancement in the form of a blade forming on the barrel to be let the weapon be used for close-range attacks.

Diamond Absorber

A special accessory developed by George Solo to bolster the Rider’s capabilities. The Rouse Absorber was designed to be a supplementary Rouse device to Rider System & specialized container for the top category Rouse Cards. Its system was designed to harness the J: "Fusion Peacock" & Q: "Absorb Serpent" Rouse Cards & is only compatible with those cards. Initiating either Jack Form, modifies the Rouser Absorber with a signature diamond-peacock plaque. Though the Rouse Absorber is dubbed Diamond Absorber henceforth, the modification, in either case, proves more cosmetic if anything.

Red Rhombus

The Red Rhombus is a motorbike developed by B.O.A.R.D. specifically designed to the aspects of Diamond Warrior's Rider System.

Performance Modes

Fire Rhombus
  • Cards Required: Fire Fly (6)

This performance mode is activated with the use of the 6: "Fire Fly" card. Once 'roused', the Red Rhombus generates a fiery aura which fends against obstacles.

Rouze Cards: Diamond Suit

Card Card Undead Avatar Rouzer/Absorber announcement Effects Normal AP Cost

Change Stag

Stag Undead "CHANGE" Initiates transformation when inserted into the Diamond Buckle; boosts the power of Combos when in King Rouzer. 0 AP

Bullet Armadillo

Armadillo Undead "BULLET" Enhances attacks with the Diamond Rouzer. 400 AP

Upper Frog

Frog Undead "UPPER" Enhances the power of uppercuts. 600 AP

Rapid Pecker

164px-4 of Diamonds Pecker Undead.jpg
"RAPID" Enhances the rate of fire of the Diamond Rouser. 800 AP

Drop Whale

Whale Undead "DROP" Enhances leg strength & power behind heel drop kicks. 1000 AP


Fly Undead "FIRE" Supplements the next attack with elemental fire. 1000 AP

Rock Tortoise

163px-Tortoise Undead.jpg
"ROCK" Transmutes body into organic stone to reduce damage. 1400 AP

Scope Bat

163px-8 of Diamonds Bat Undead.jpg
"SCOPE" Enables heighten senses for accurate shooting attacks. 1200 AP

Gemini Zebra

146px-Nine of Diamonds Zebra Undead.jpg
"GEMINI" Creates an optical doppelgänger of the user for a double attack. 1400 AP

Thief Chameleon

131px-Titan Undead.jpg
"THIEF" Enables supernatural ability of copying an opponent's form or attack. 1600 AP

Fusion Peacock

120px-Queen of Diamonds Peacock Undead.jpg
"FUSION JACK" Transforms Diamond Paladin into Jack Form when Absorb Serpent is inserted into the Rouze Absorber +2400 AP

Absorb Serpent

120px-Serpent Undead.jpg
"ABSORB QUEEN" Triggers Diamond Paladin's ability to transform into Jack form when inserted into the Rouze Absorber +2000 AP

Evolution Giraffa

120px-Giraffa Undead.jpg
"EVOLUTION KING" Transforms Diamond Paldin into King Form when Absorb Serpent is inserted into the Rouze Absorber. +4000 AP

Rouse Combos

(Jack) Burning Smash

  • Cards Required: Drop Whale (5) + Fire Fly (6)

Diamond Paladin's signature card combo; The combo enables Diamond Warrior to do a flaming drop kick, coupling 5's "DROP" effect imbued with the fire-attribute of the 6's "FIRE" effect. In Jack Form, the compound effect is further increased with J-Diamond Warrior's flight capabilities.

Burning Divide

  • Cards Required: Drop Whale (5) + Fire Fly (6) + Gemini Zebra (9)

This card combo enhances the "Burning Smash" combo with the addition of 9's "GEMINI" effect. With this added effect, Diamond Warrior splits into two clones & they do a flaming drop kick on the opponent for double damage.

(Jack) Burning Shot

  • Cards Required: Bullet Armadillo (2) + Rapid Pecker (4) + Fire Fly (6)

This card combo allows Diamond Warrior to shoot out flaming fireballs like a machine gun from his rouzer. In Jack Form, Diamond Paladin uses his flight capabilities to his advantage by showering shots from a higher altitude while the power of Jack Form enhances the shots.

"Fire-Upper Combo"

  • Cards Required: Fire Fly (6) + Upper Frog (3)

Diamond Warrior's signature card combo; The combo enables Diamond Paldin to execute a flaming uppercut, coupling 3's "UPPERCUT" effect imbued with the fire-attribute of the 6's "FIRE" effect.

"Bullet-Fire Combo"

  • Cards Required: Bullet Armadillo (2) + Fire Fly (6)

The combo enables Diamond Warrior to use his Diamond Rouser to fire single fireballs at a target, coupling 2's "BULLET" imbued with the fire-attribute of the 6's "FIRE".

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