Ziggurat 2

Since I got asked how I did this just my two cents (this is not a real guide, there may be better/easier ways to do this, but since there is no guide at all I thought I'd write down my thoughts):

I tried it with a lot of chars and failed about 10 or 12 times, but that unlocked the wand specialist/monk for me (Kraz is her name I think). I managed to win my first run with her. It wasn't easy, I honestly think no run with any char will be really easy on master difficulty. The random factor can ruin any run and later stages really ramp up damage received, so evasion skills will be paramount to win. I don't want to say "git good", but a certain amount of jumping, strafing and awareness of surroundings is essential. If you run backwards into a corner the game can be over rather quickly.

Now for the specifics: Kraz gets an enormous boost to wand damage at the cost of lower mana regen. The killer is her special skill, it allows wand usage without using mana, and every kill adds 1 sec to skill duration. Fire this skill up at every chance you get. Run up to the first enemy, start skill and then start killing as fast as possible. I managed very often to finish whole fights with this skill still running. If you can choose an upgrade for this skill when leveling up, take it. You can get higher fire rate, more damage while active.

Obviously take anything that boosts your wand damage, when you get the choice. If you can get additional levels for your wand, take it. Do not reroll skills though, always keep coins for the shops. They give great perks, and have a high chance of offering new wands with high levels. Rerolling a shop can be worth it for this reason.

Do not neglect your other weapons by not using them, but focus on pushing your wand (obviously).

Again, USE YOUR SKILL AT EVERY CHANCE, SPECIALLY AT THE START OF THE BATTLE. The cooldown ist quick anyway, and with a well leveled char and wand most enemies are one hit/ two hit. Large groups of small enemies will just melt and boost skill duration. Play as aggressive as possible, always focus on more damage when leveling up. Barrier and shield are nice, but a dead enemy can't hurt you. The faster they fall, the easier the fight will be.

A final word on bosses. Learn to strafe. Circle them while jumping at the same time to throw off their aim. Use dash sideways to evade their stronger attacks. When they start spawning their adds, fire your skill (again) and burn them down. If you have another strong weapon, use it when wand should run empty, the switch back. REMEMBER YOUR SKILL ;))

Good luck, stay frosty