New RAT omni This article belongs to the Race Against Time Timeline in the Classic Continuity.

Diamondhead is the Omnitrix's DNA sample of a Petrosapien from the planet Petropia.


Diamondhead looks just like the Main Timeline's Diamondhead in the original series, but his crystal is darker in color and translucent.

Powers and Abilities

Being a Petrosapien, Diamondhead has the same abilities as his species.


Being a Petrosapien, Diamondhead has the same weaknesses as his species.


  • In Race Against Time, Diamondhead battled Eon, then hid in the girls' changing room until he reverted.


Ben 10

Race Against Time Aliens
DiamondheadGrey MatterHeatblastWildmutt