"R" is for "Razorex"

Razorex

No. Enc.:  1 (1)
Alignment:  Neutral
Movement:  120' (40') 
Armor Class:  3
Hit Dice:  20
Attacks:  3 or 1 (2 claws, 1 bite, or 1 volley)
Damage:  2d10 / 2d10 / 6d6, or 4d6
Save:  L10
Morale:  11
Hoard Class:  VII (x3)
XP:  7,250

Standing 20'-30' tall, reaching lengths of 50' long, and weighing over 7 tons, razorexes are the apex predators of the frigid wastes.  Bony spurs and jagged icicles adorn their heads and necks, and a frosty crust ("Force Screen" ) protects their hides.  They relentlessly stalk prey across the tundra, sometimes venturing into cave networks and Ancient complexes large enough to contain their bulk.

A razorex is an engine of carnage, delivering savage melee attacks and launching deadly ranged assaults.  They can hurl icy shards up to 120', which do 4d6 damage to every target in a 10' radius.

There are rumors that some razorexes have been seen with cybernetic implants and mechanized accessories.  Who—or what—would perform such modifications is unknown.

Mutations:  Force Screen (Modified), Increased Sense (Smell), Increased Sense (Vision), Reflective Epidermis (Cold), Spiny Growth (Modified)