As a special restriction, I decided to convert any ENDISWAL or PISORFF glyphs on sight. These glyphs are very powerful in the maze-like environment of the Shifting Passages, because they let you bypass its special gimmick. I thought it would be best to play the dungeon on its own terms.
'Catfighting' is especially important in this dungeon, because the narrow halls and the blinking boss force you to fight almost every monster in the dungeon. You absolutely want to clear out the 9s and 8s while you still have level-ups available. You won't have enough potions to fight Evolovia and the 9s and 8s all in one level.
I don't present this as a perfect run, but it was a successful one. If you are new to the game, I hope you find this useful.

I find a 2 right away. Between my melee attack, mana shield, two fireballs and the effects of burning, I see that I have enough firepower to bring him down to 1 hit point. From there, I should be able to win by regen fighting.

No problem at all.

It takes me a bit longer than I wanted to find another 2, but that's okay. The tiles 'wasted' on exploration uncovered lots of useful information. I've found the boss, the sub-boss, both 9s, one of the 8s, several power ups, two shops (containing a fine sword and the philosopher's stone), and the sub dungeon, as well as three glyphs.

Wraiths are fine for finishing a level on, but terrible for starting. If I had found the wraith first, I would have waited to engage it until after I had located another 2. Never get mana burned unless you know you can negate the consequences.

APHEELSIK and BLUDTOPOWA are an incredibly powerful combination if you have a lot of tiles left and enough mana cast APHEELSIK and BURDAYRAZ. Fortunately, I have all of those! While I could use this combination to go after that gorgon-9, at level 2 it would take way too many tiles to be worth it. Instead, I use the combo to kill a gorgon-4. I would have preferred going after a 5, but the the 5s available were wraiths, which are immune to poison, and now is the time to start preserving tiles.

From here I decide to pick off that gorgon-9. It'll take about 50-60 tiles or so, but it's totally worth it.

51 xp for one fight. Nice.
During the battle, I uncovered a WEYTWUT glyph. WEYTWUT is mostly used by melee characters to get first strikes. While that isn't going to help me much, it can also be used to de-fang gorgons for later harvesting, and improve the xp value of popcorn monsters. The problem is that it costs 8 mana a pop, and I need all the mana I can get to keep using my game-breaking fireball/poison/blood magic combo. I decide to let it lie for now.
At this point, realize that I can challenge Aequitas. He is a high-attack low-health boss, which is the perfect target for a fireball/poison combo.

Success! Not having to deal with Aequitas during the endgame will be a big advantage, not to mention getting truckload of bonus xp.
The gold dropped by Aqueitas is important too. I can now safely buy things from the stores and still have enough left over to pick up the philosopher's stone. I end up buying a fine sword and a mana pendant. The pendant gives me enough mana to cast 2 fireballs for every one poison, significantly improving my efficiency. I should have done this earlier, but I'm still not used to sub-bosses dropping gold.
It's time to get the remaining level-9.

Done. From here, it's a cakewalk. The most powerful monsters are all dead, and I still have several level-ups waiting for me. It's pointless trying to regen-fight a blinking boss, so I use the remaining black space to kill off the 8s and then convert APHEELSIK and BLUDTOPOWA.

This is me right before attacking Evolvia. Notice that I am at the beginning of a new level, when normally you want to be right at the end of your current one. I had decided to clear the maze of potentially dangerous roadblocks (notice that the high-level gorgons are now all gone). In doing so, I used up so many resources that I decided it was best to just level up and start from there. In the end, I think it was a fair trade.

After my first attack, Evolovia blinked to the farthest point possible, forcing me to fight almost the entire remaining dungeon to continue the battle. I was glad that I decided to clear out those gorgons first.

In the end, I finished with enough resources left over to clear the dungeon and buy the philosopher's stone, meaning that I unlocked the Demonic Library, the Alchemist, and the Bank-3 all in one move.