Touliang

Touliang (透亮) is a lich from the Eastern Continent who works with Fate Crystal. He bears a personal grudge against Trevor for the murder of his grandson and theft of his work.

Description
Touliang is a lich existing in the Frozen North. He tends to wear long, brocaded robes, and has crystals growing out of his exposed skull.

Touliang has three known residences: an apartment in Sigil, a tower in the Frozen North, and a pocket plane.

His tower is linked to a Frozen Fate covered in Fate Crystals, which he works to refine and make into weapons. He is the only entity known to be working with these crystals, which have been documented in several books known to some members of the party. He attempted to avoid the madness corruption inflicted by the crystals by using only mindless golems to do the dirty work, but crystal-corrupted golems discovered in his tower suggest that this solution wasn't entirely effective. The only successful refinement the party has witnessed is the True Crystal Sword currently wielded by Trevor.

In Aegis
Before Trevor joined the party, he encountered and killed Touliang's grandson, taking the True Crystal Sword from his body. This (and possibly a two) earned Trevor Touliang's unending hatred.

Touliang sent snakes after Trevor when the party was first on Sigil. They were easily defeated, but got the party's attention. The party found Touliang in Sigil, fought him, and followed the trail to his apartment. When they tried to take his portal to his stronghold on the Prime, a magical key given to Scarlet led them to the Halls of the Forgotten instead.

The party later used the same portal (sans key) to take the fight to Touliang at his stronghold, conquering it and destroying his body. They discovered some evidence of Touliang's obsession with Trevor: Trevor's full name was the answer to one of the entry puzzles.

Since Touliang's phylactery was within the Fate Crystals, the party was unable to reach it. He returned with (at least) the power to level an entire city. Upon hearing of this, the party followed a trail to his pocket plane and confronted him once again.