C.O.W.#270: D&D Variants: Round 3: Chaos Tarrasque
This Tarrasque fell asleep in the planes of chaos for over 7 years. When he awoke the creatures horns had all grown and developed a strange coloration with tiger like stripes. The front arms mutated into large grasping claws, his tail formed a venomous stinger like a scorpion. Overall the creature grew into something almost unrecognizable as a Tarrasque. Of course the new mutations only made him more devastating when he crossed over to our plane. He fed for almost an entire month before returning to slumber, wiping out 5 towns entirely.