Rokk is the third beast Tom must fight in the 5th series. Rokk is wreaking havoc in a town called Tion. When bats Velmal's bats attack Tom and his friends, Storm gets poisoned. Tom ventures into Tion to get some herbs but is attacked by Rokk. Tom defeats Rokk by climbing into Rokk's right eye using sticky gloves made of spider silk and then removing an emerald coloured crystal.
Rokk is 324 years old, has a power level of 250, a magic level of 150 and a fright factor of 87. His card says "Rokk is so massive he appears to emerge out of a sheer rick-face. He uses his powerful bbody to create terrifying rockfalls."