FormerlyHemlock
Hero
D&D is a role playing game. We play a role in a story. Killing the Tarrasque with a rot grub is not a good story.
You're kidding, right? I can't imagine a more interesting way for the (RAW) Tarrasque to die. (It's not a very interesting monster, by RAW.)
Stories like that are why I play D&D. There was this one time when I thought they were going to TPK against a Chain Worm until the monk whipped out his Bag of Devouring...