SRD:Dire Badger

=DIRE BADGER=

These vicious creatures tolerate no intrusions. They cannot burrow into solid rock, but can move through just about any material softer than that. A dire badger usually leaves behind a usable tunnel 5 feet in diameter when burrowing unless the material it’s moving through is very loose.

A dire badger is from 5 to 7 feet in length and can weigh up to 500 pounds.

Combat
Dire badgers attack with their sharp claws and teeth.

Rage (Ex): A dire badger that takes damage in combat flies into a berserk rage on its next turn, clawing and biting madly until either it or its opponent is dead. It gains +4 Strength, +4 Constitution, and –2 AC. The creature cannot end its rage voluntarily.

See Wikipedia Entry: Badger

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