Ben 10 Wiki
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XLRArmBlastDiamondHeat (or Ben x4[1]) is a fusion of XLR8, Four Arms, Heatblast, and Diamondhead.


He has XLR8's legs, tail, and lower body. His lower body has Four Arms's general proportions and arm count, the lower set keeping the structure of the ones belonging to Four Arms, but made with Heatblast's lava, with his upper spikes being made of flames. His upper body has Four Arms's general shape and upper set of arms but with gauntlets, spiked shoulder pads, and upper body armor, all made from Diamondhead's crystals. He also has Four Arms's head, but the chin and head have a crystal structure around it that comes from Diamondhead. His tail is covered in crystal spines and mace that has four spikes.

XLRArmBlastDiamondHeat bears no Omnitrix symbol, as he was used while within it.

Powers and Abilities

XLRArmBlastDiamondhead has the combined strength of Four Arms and Diamondhead, with the latter's durability and crystal generating ability.

XLRArmBlastDiamondhead also has XLR8's speed, Heatblast's fire generation.

XLRArmBlastDiamondhead has a spiked tail mace.


Durability Limit

XlrArmBlastDiamondHeat has a durability limit, as he was knocked out for a short time by High Override's energy beams.



Ben 10

Season 2

Season 3

Season 5

Naming and Translations

Language Name Origin
German XLRKrakeStahlInfernoSchädel Translation of English name
Italian Xlr2InfernalediDiamante Translation of English name
Portuguese (Br) XLRBraçosExplosãoCalorDiamantino From XLR, the original name; braços, arms; explosão, blast; calor, heat and diamantino, diamond
Spanish (HA) XLRBrazoFuegoDiamante From XLR, the original name; brazo, arm; fuego, fire and diamante, diamond
Spanish (Spain) XLBrazosFerno From XL, the original name, brazo, arm, and ferno, inferno


  • This transformation was referred to as Multi-Alien in a video released on Cartoon Network's YouTube channel.
  • XLRArmBlastDiamondHeat's voice is the same as Diamondhead.
  • Its name in Spanish from Spain does not present any present characteristics of Diamantino's name.
  • XLRArmBlastDiamondHeat's tail might be a reference to Humungousaur.


  1. Innervasion Credits
Introduced in Season 1 CannonboltDiamondheadFour ArmsGaxGrey MatterHeatblastOverflowStinkflyUpgradeWildvineXLR8
Introduced in Season 2 RathShock Rock
Introduced in Season 3 HumungousaurSlapback
Introduced in Season 4 GoopJetrayWay Big
Introduced in Season 5 Alien XBig ChillBloxxBuzzshockChromastoneRipjawsSpidermonkeySurge
Omni-Enhanced Aliens CannonboltDiamondheadFour ArmsGrey MatterHeatblastOverflowStinkflyWildvineXLR8
Omni-Kix Aliens CannonboltDiamondheadFour ArmsHeatblastHumungousaurJetrayRathShock RockSlapbackXLR8
Omni-Naut Aliens HeatblastJetrayHumungousaurShock Rock
Fusion Aliens Amalgam AlienAmalgam BenGrey ArmsXLRArmBlastDiamondHeat
Non-Canon Aliens Banana AlienBlack Hat AlienHotdawgMole-StacheScooter Alien
Non-Canon Fusion Aliens Omnitrix Glitch FusionDiamondhead-Humungousaur FusionRath ArmsShock Blast