This build is ASS, I'm gonna be real. But I needed something to stick to so I threw it together. Why not post it. Enjoy.
My stats are in the 6k-7k range. Will most likely be fine with ~5k ish stats. You NEED a TB for this though.
First Wave: Build auras, beams, and the setup at HINT 1. I add golems to help out-heal damage done to the towers but you can go with less or more. Pylon needs to reach both auras. If you have <6500 aura range you can move araus closer inwards.
During First Wave: Upgrade at least BB, auras and pylon.
>Using a jester is great to wheel kill stalling enemies at the end of rounds.
Second Wave: Fill rest of DU with wisps. (HINT 2)
During Second Wave: Upgrade
>Have a full bank of mana ready to drop for your summoner.
Third Wave: Build minions protecting the main build, north and south. (HINT 3 and HINT 33 respectively).
>Add more mage/spider minions if you want.
Rest of Waves: Upgrade, prioritize main build and then minions.
Notes: If small enemies are a problem you can sacrifice golems/wisps for gas traps or electric auras. If your crystal takes damage you can repair it with the wheel using (ETERNIA CRYSTAL / POTION / POTION).
Boss: I hate using DPS so I rawdog it with a TB. I actively play as my TB on HINT 4. Focus on staying alive. When the phoenix shoots its homing projectiles I dance around the crystal area until the HINT 4 spot is safe again. Do NOT stand directly on your towers.
For Staff Farm: Have 3 apprentices up. I've heard you can sit them at HINT 5 (under-side of scaffold) with guardian pets. I killed mine instantly so I can't confirm how that goes.
Alternatively, you can Bring: Your warden for higher wisp damage (use wrath if you do). A summoner in phase shift on your towers to flash heal (won't be targeted afaik). A jester to wheel heal towers. An actual DPS if you are brave.
Good luck!