Hi: I am doing the Use Crystal Charger in the Great Chasm. I seem to run into many more levels to the gauntlet than I have potion bottles. If I run it right, I can make it to the eighth level before either getting beaten in a fight and having to do it all again. Why is there no mana or health in that vault if it is ten levels deep? Storm guys hit the hardest. I know I am running a Storm Myth wizard.
I'm pretty sure this dungeon was designed for friends (even though your friends cannot teleport in, must have quest like you).
However, it can be done solo, did so myself. It took five tries, but was accomplished. I assume you have three bottles, if so, you need all three. Quickly take out one of the two monsters and slowly work on the second. Towards the end of the fight the trick is to get the one remaining monster as low on life as possible (around 70 hp or so, whatever your 0 mana attack card allows). With this life remaining keep healing until your close to max hp. After the monster uses a high hitting card, this would be a good time to max heal and defeat, as the monster will be low on pips and usually casts blades/shields. This should leave you with close to max hit points. The key is timing the bottle drinks once your low on mana, not hit points (because using alot of healing cards will drain it). Should be low on mana after the third and sixth stage. Use the last bottle right before the eighth and final stage.
Since you've made it to the eighth stage before, it's only a matter of practice before you beat that dungeon.
Again, the easiest way to beat the dungeon is simply bringing at least one other wizard with you.