Umber Hulks are giant creatures which somewhat represents a hybrid of a ape and a beetle.An umber hulk stands roughly 8 feet tall and measures nearly 5 feet across, weighing about 800 pounds.
They are very good at burrowing through the ground and creating traps with their tunnels and holes.Surprisingly,they don't mostly rely on their strength,but rather their magic.They can fire sonic beams which damages the enemy's ears.They have also been known to blind their opponents and confuse them with their magic.
There are two other variants of the regular umber hulk,the Vodyanoi and Truly Horrid
The Vodyanoi are aquatic umber hulks with a greener skin and only 2 eyes.They lack the ability to confuse their enemies like their land walking counterparts.They feast on anything that comes near the water,and move from area to area through the underdark's underwater tunnel system
The Truly Horrid are similar to the regular umber hulks,only much more deadly and strong. The truly horrid umber hulk stands more than 16 feet in height and weighs about 8,000 pounds. Phenomenally powerful, the truly horrid umber hulk is a loner that is feared even by its own kind.The only time more than one is seen together is during war or if they are under control of the Illithid,who often enslave umber hulks
Resistances: Dark magic(30%),sonic magic(immune),psychic magic(20%)
The tough body of umber hulks makes them very hardy and quite resistant against physical attacks
Vodyanoi are much much more powerful in deep waters
Weaknesses: Holy Magic(40%),Fire Magic(10%,20% for Vodyanoi)
While in light,the Umber Hulk's speed and energy is drained,and it's senses are weakened
Vodyanoi are also much weaker on land
Umber hulks are generally easier to kill in small,enclosed areas