What is the biggest creature in creatures of Sonaria?

Inquiring minds want to know, what stands as the mightiest of all creatures in the vast and mysterious world of Sonaria? Could it be the colossal dragon, whose scales glint in the sun and whose roar shakes the earth beneath its feet? Or perhaps it's the ancient beast, cloaked in shadow and armed with razor-sharp claws, that hunts in the depths of the forest? Surely, with such a diverse array of creatures, there must be one that reigns supreme over all. What is it, and how does it compare to the other formidable inhabitants of this enchanting realm?