Personal Info:
Real Name: Uroc
Also Known As: Uroc the Invincible, Uroc the Unstoppable, Uru Monster, Uru Warrior
Place Of Birth: Kingdom of the Trolls, Gundershelm Caverns, Asgard
First Appearance: Thor Vol.1 #408 (1989) Modern Age Villain
Known Associates: Ulik
Group Affiliation: Rock Trolls
Base Of Operations: The Collector's Prison World
Grudges: Thor
Creators: Tom DeFalco and Ron Frenz
Enhanced Abilities: Uroc has vast super human strength, endurance and durability.
Body Armour: Uroc's entire form is crafted from the near-unbreakable substance uru, making him nearly invulnerable to injury.
Uru: Uroc is composed of uru and consequently, Uroc possesses many mystical powers, including the ability to absorb and release lightning, and to magnetize other pieces of uru to himself.
Uroc was once a Rock Troll in the service of King Grundor who was ordered to find Grundor a new weapon, or be killed. Uroc found a vast supply of uru metal, and used it to create a statue. He then transferred his mind into the uru body, and returned to Grundor's kingdom to have his revenge upon the Rock Trolls. After learning that the Rock Trolls were being forced to the surface for food because of Uroc, Thor journeyed into the Chasm of Eternal Sorrow with Grundor to seek out Uroc. Uroc stands at least 20 feet high.
Uroc at Marvel Database
Uroc at Marvel Universe: The Appendix
Uroc at Comic Vine