IMMUNE TO RADIATION: The Deathclaw reduces all Radiation damage suffered to 0 and cannot suffer any damage or effects from radiation.
BIG: The Deathclaw is bigger than most characters, towering over them. The creature receives an additional +1 health point per Level, but its Defense decreases by 1, to a minimum of 1. Further, it only suffers a Critical Hit if an attack inflicts 7+ damage (after damage resistance) in a single hit, rather than the normal 5+.

KEEN SENSES: One or more of the Deathclaw's senses are especially keen; they can attempt to detect creatures or objects which characters normally cannot, and they reduce the difficulty of all other PER tests by 1 (to a minimum of 0).
REND: A Deathclaw may choose to make a deadlier Claw attack by increasing the difficulty of the attack by +1. If it succeeds, the attack’s damage increases by +2 DC .
WEAK SPOT: If an attacker chooses to target the Deathclaw’s torso, it ignores the creature’s DR. This does not apply against hits which hit the head due to random chance.
MASSIVE STRENGTH: A Deathclaw is capable of lifting and throwing objects as large as a standard car.