I hope one of those Brute Powers is "Get really big" and another is "Get natural weapons".



Because I'm suddenly loving the thought that the Tarrasque is an ancient Barbarian who hit level 20 and lost control (though DC30 to end with all of your Will Save bonuses should be pretty easy. You have at minimum a +18, maybe he was cursed to always roll natural 1s on any attempt to reduce his rage)