Slangthog

Slangthog is one of the guardians of the six crystals, in particular the green crystal. Although he was appointed and created by the Gods to protect the crystal from anyone unworthy, he was corrupted using a ritual and was used to combat the protagonists, with Shadeth as its supposed master, after being defeated sometime at the temple of the first crystal.

History
Thought to be a legendary guardian beast appointed by the Gods to protect ancient artifacts and knowledge, Slangthog's only instincts are to protect and kill any who trespass or attempt to take said treasures for their own. Protecting the green crystal, Slangthog resides in the first temple to guard. He encounters Dan and the protagonists near the end of the first book, resulting in the first large battle of the journey, causing Slangthog to tumble off of the cliff and mountain, where a blizzard had brewed and his body was lost to the depths of cliffs, causing the temple to collapse and crumble as the group obtained and achieved the first crystal, barely making it out alive, others actually being killed in the collapsing temple. He was not seen again for a long while after.

Later on, Shadeth, a spy for Saobo, began a ritual in secrecy, being the reason of his absence. Slangthog was reborn and corrupted to become an evil guardian, intent on destroying the group which had defeated him, as seen in the first battle since his return where he was shown to be much more powerful and bloodthirsty. He was later killed by Rel'Mor, who somehow destroyed the ancient beast, though when or how this happened is unknown for the time being.

Appearance
Slangthog appears in the form of a large green beast, heavily muscled, and ripped tan garments covering part of his waist and legs. With a forked tongue like a snake, and sharp fangs, Slangthog's ears are those of an elf's, and he has a curved horn atop his head with a long tail, having a spiked end.