Once beleived to simply be abnormally large Umber Hulks, the Giga Hulk is, in fact, a closely related but seperate specie.

Giga Hulks are enourmous creatures that dwell even deeper under the earth than Umber Hulks. They look almost identical to Umbers, exept for their larger size, often towering an imposing 16 feet tall and 8 feet wide. Their skills and abilities are all a grade higher than Umber Hulks, as well as possesing a few additional special attacks.

Combat
Giga Hulks are basically more powerful versions of Umber Hulks, and use the same tactics.

Giga Hulks have darkvision with a range of 60 feet. They also have some spell resistance, and the following special attacks and abilities:

Confusion Gaze (Su): Same as Umber Hulk.

Tremorsense (Ex): Same as Umber Hulk.

Improved Grab (Ex): Due to its superior size, the Giga Hulk is capable, upon a succesful bite attack, to grab a creature within its massive pincher-like jaws. If the creature fails it's grapple check, it will remain trapped in the Giga Hulk's jaws. It is entitled to a grapple check at the beginning of each of it's turns, but if it fails, it remains trapped until it's next attempt, unable to perform any other action.

Constrict (Ex): Any creature caught in the Giga Hulk's jaws at the beginning of the Giga Hulk's turn receives automatic bite damage, as well as an additional 3d3+3 constriction damage. This prevents the Giga Hulk from using it's bite attack against other enemies, but it can still use it's claw attack on other foes.

Society
Giga Hulks can often be foud in the same territory as Umber Hulks. They tend to get along well with them, but they will viciously attack others of their own kind of the same gender. This profound intolerance for their own kind is why Giga Hulks are so uncommon. Giga Hulks speak the same unique language as Umber Hulks, but due to their superior intelligence, they can also speak a rudimentary form of Undercommon.

This creature has not yet been play tested.
This is not a kender type creature.