Gwylrrtwrx, known much better as Gwyx, is a dragon and resident of Dragon Home. He absolutely despises all humans, no matter how good they are, because humans almost wiped out dragons centuries ago. He highly disapproves of Drake, whom he addresses as his "Dragon Brother", for bonding with a human and becoming vegetarian.
When Drake tries to give all his magic away, which would kill him, Gwyx appears, telling him he should not give his life for a "petty" human. He later helps with the making of the Key to Avalon by gathering magic from all the dragons (including Drake) and transporting it to the key.
At the end of Full Circle, he takes credit for saving the web. The dragon leader renames Gwyx "Web Warrior", not knowing he did not do anything to save the web except for transport a bit of magic into the key.