rare n huge beast 

Perception +20; scent 30 feet, tremorsense (imprecise) 60 feet

Skills Athletics +25, Survival +22

Str +7 Dex +4 Con +6 Int -3 Wis +4 Cha +1

AC  33; Fort +25, Ref +19, Will +21

HP 195

Speed 40 feet, burrow 20 feet; unstoppable burrow

Melee [>] adamantine claw +25 (agile, reach 15 feet), Damage 3d8+10 slashing

Melee [>] adamantine fangs +25 (reach 15 feet), Damage 3d10+10 piercing plus shuln saliva

Armor-Rending Any time the shuln scores a critical hit with a melee Strike, it also deals the same amount of damage to the target's armor, bypassing any Hardness lower than 10, like adamantine.

Shuln Saliva (incapacitation, poison) Saving Throw DC 32 Fortitude; Maximum Duration 6 rounds; Stage 1 2d6 poison damage and slowed 1 (1 round); Stage 2 3d6 poison damage, and slowed 1 (1 round); Stage 3 4d6 poison damage and paralyzed for 2d6 hours.

Unstoppable Burrow Shulns can burrow into solid rock and any metal with a hardness less than that of adamantine like it is soil or loose rubble, leaving a tunnel 10 feet in diameter.

Bestiary, page 294.