Hint 1: Aurastack (Lightning, Strength Drain, Ensare, Healing). 4 DU Buffbeam behind the lamppost for the Lightning towers. 5 DU Buffbeam for minions (1xSpider 2x mage 4x archer). Cage it up in reflects. Inferno trap + Proxy trap can be added if you have lower stats. (do not add Gas trap cause mobs will get stuck in spawn)
Hint 2: Aurastack (Lightning, Strength Drain). 4 DU Buffbeam. You can add traps if you need it.(Do not upgrade anything here).
If you need it, you can add more minions in the middle for a more stabe build for low stats, This can be helpful if your Lightningtowers gets killed by the ships cannons during the boss aswell :-)
GL and HF