Boulder BearInit +1; Atk claw +6 melee (1d6+6) or bite +8 melee (1d4+5); AC 18; HD 8d8; MV 30' (60' rolling, see below); Act 2d20; SP bear hug, camouflage, rolling thunder; SV Fort +4, Ref +0, Will +3; AL N.
|Slightly too anthropomorphic?|
Like most bears, if a boulder bear hits an opponent with both of its claws, it automatically initiates a bear hug maneuver, forcing the victim to succeed at a DC 20 Fortitude save or take 2d6 points of additional damage. Further, due to its rocky "shell," the boulder bear can also make a rolling thunder attack when the opportunity permits. Should the boulder bear be at a higher elevation than its opponents, it may tuck itself inside its carapace and roll downhill at its opponents. During the roll, the boulder bear is AC 20 as it covers its vital regions with its shell and moves at 60' per round rather than its normal 30', making this mode of travel the default way for the boulder bear to close the distance between it and its foes. At the end of the travel, the bear may attempt to run over any PCs in its path; all within a 10' by 40' line must make a DC 16 Reflex save or take 1d14 points of damage (no damage on a save).
Boulder bears either live solitarily or in mated pairs; they do not form larger family groups (thankfully) except while raising young. They are the ultimate scavengers of the mountains, subsisting off of whatever roots, grubs, eggs, nesting vermen or other living matter they can find above the tree line. They are fiercely territorial and will be instantly hostile to any adventurers that cross their path. However, they have only a 1-in-4 chance of being encountered awake, making such encounters unlikely unless the adventurers should interfere with the bears, perhaps believing them to the be the boulders they resemble.
[This was a fun creature to introduce to the Metal Gods campaign. At first, I said "boulder bear" as a sort of sideways shift from "polar bear," but then the additional details started to come into focus. It was one player in particular's insistence on calling them "roller bears" that earned them the rolling thunder attack form.]