It's been a long time since I namefagged or tripfagged, and I don't come here as often as I used to, but here I am.
I regret to inform OP that the campaign did not end happily, and though Wurg survived, his particular material plane was destroyed. In a game I DMed for the club the next year, just to feel what it was like to DM, I managed to work in Wurg as a background hero-deity. By some great coincidence, I started a thread on the subject today, the details of his ascension can be found here:
>>19481713
I believe I have told /tg/ about Wurg's greatest in-game accomplishment: the slaying of an Ancient Blue Dragon named Blaze. Not sure if I or anyone else screencapped it. What I have never told /tg/ about is his brief duel with Anti-Wurg, an elvish Paladin of Tyranny serving Tiamat. The circumstances under which we encountered him would take too long to explain, so I'll get straight to the duel itself: we both charged, using the Shock Trooper plus Leap Attack build to full effect, then used some weapon property which allowed us to get free bull rushes on each other. Separated, we charged again and both got critical hits. In the end, his higher critical multiplier and larger hitdice made Wurg the victor; he beheaded Anti-Wurg and survived being impaled upon his foe's greatsword.