After having almost won a purist run where I made the colossal mistake of picking up Warrior's Pact I realized that the most important thing in purist VGT is getting lucky. You can play badly and still have an easier time compared to when you play very carefully with better strategy but bad monster composition and curse order screws you.
Literally the next try after that sloppy run I won it. I could say it was thanks to my skills, but the true winner was 1st floor GG, early Midas Gloves, Bysseps, Halpme and a Weytwut to beat the 1st striker floor. And also the lack of screw ups. No revealed Binlor floor (it had a Dancing Blade, but my Weytwut countered it), the revealed floor came after the Binlor one, the no XP was encountered late, curse floor when I barely had resists and so on.
The worst thing in the run was getting Pm so late it was meaningless, but the good monster selection and curse order made it a non-issue.
Most of the run I was worshiping GG, taking 6-7 Absolutions, bunch of cleansings and an occasional protection. Grabbed Enligtenment at 11 beads, by the end filled up 3 slots. Converted to Taurog around the 5th sub for the armor and some extra damage to put guys back into 2-shot territory, kept some popcorn and glyphs around for an emergency exit. Pm was eveading me, but Dracul came just in time when I needed more resists. Converted most of my glyphs, I left Halpme for Drac piety, and after had enough space picked up Bysseps and bought a Tower Shield. I had no hopes for maxing out resists that late, so I took a Lifestal, which eased piety generation as well. And it's always nice to dodge with a liefestealing rouge.
The remaining 2 floors were easy, my towering damage and Bysseps took care of goos too. Enlightenment really payed out against Horatio, my enlarged mana pool allowed me to store more Bysseps hits. Blackspace was getting scarce, it was only enough for 2 more casts.
The bossfight was easy, I had lot of piety to stack sanguine and never got into a situation where I had to tap into bloodpools early. In the end I cashed in my piety with TT.
http://s12.postimg.org/ek5ircgkd/halpme_GG4.png
http://postimg.org/image/p90p8f4cx/