"S" is for "Slugbear"

Slugbear

No. Enc.:  1 (1d3)
Alignment:  Neutral
Movement:  60' (20')
Armor Class:  4
Hit Dice:  6
Attacks:  3 or 1 (2 claws, 1 bite, or 1 radula)
Damage:  1d6 / 1d6 / 1d10, or 2d4 + poison
Save:  L3
Morale:  10
Hoard Class:  VII
XP:  1,570

Slugbears are plodding, 11' tall bipeds with shaggy, slime-drenched fur.  They can slowly (over 3 rounds) elongate their torsos and limbs so as to reach heights over 20', and contort through openings seemingly too small for their bulk.

A slugbear harpoons targets up to 15' away with its barbed, radular tongue, injecting a Class 11 paralytic neurotoxin in the process.

Given their malleability and perpetual sogginess, slugbears are immune to blunt / bashing weapons and crushing, and suffer halved damage from fire-based attacks.  Desiccating agents (salts, silica gels, etc.), though, inflict 2d6 damage per round of exposure.

Mutations:  Frailty ("Dehydration Sensitivity") [D], Toxic Weapon (Venom)

Designer's Notes:  The Slugbear began as but a sketch, sprung from the fertile, fevered mind of Jason Sholtis (he of the awesome The Dungeon Dozen blog, which every self-respecting DM / GM / Judge / Screenmonkey should have bookmarked) over on G+.  He kindly gave me permission to run with the concept, so I statted it up.  Here's the original art!