Gargantuan elemental magical beast

[Belle Hibiki]

Just in case anyone doesn't know what the tarrasque is:

The tarrasque is a highly destructive creature. It needs to eat constantly and savors its desire to destroy in order to survive. As a result, it has many combat methods. It can attack with its tail, its claws, its spikes and horns, by stomping, by grabbing and by slamming its massive 130-ton body into opponents. The creature does not have a breath weapon, but it can swallow victims whole. It can inspire terror in people by charging or rushing. Its armor, in addition to giving excellent melee protection, can also deflect all manner of offensive spells, and the tarrasque has some regeneration abilities.

In the 4th edition version of the game, the tarrasque cannot be killed; reducing it to 0 hit points causes it to burrow into the core of the earth to slumber for a time (instead of killing it). The only monsters that are more feared in combat are deities, the largest and oldest dragons, certain powerful outsiders (such as demon lords) and epic monsters.

Have fun!