Build guide:

Wave 1: 

Put the Aura stacks down, then the Buff beams, and if you have time, put down the 10 archers.

Wave 2:

Put down 10 LT's in stacks of 5, placed far enough a part so you can fit 2 Chars in. If you can't stack, make the Buff beam 5 DU long, and place 5 LT's either side.

Use the remaining time/Mana to put down 3 Mages and 3 Spiders at each Minion wall.

Wave 3: 

If you have trouble with the southern crystal, sell one of the LT's(as they are only there to speed up the waves) and place a Gas Trap and Proxy on the western side of the crystal. Mobs shouldn't wander down to the east side.

Hints are in order of upgrading.

Hint 5: During Boss wave you will need the following;

A Jester equipped with a genie and Lupine for mana swirling

Tower Boost monk(2k tower boost is fine, this is just to speed up the boss wave). if you have high enough stats, I would reccommend equipping a Huntress Guardian on this Char.

the Adept/App you used to build the 10 LT's. If you have a Huntress Guardian with high Tower stats, equip it on this char over the monk.

A Summoner with Huntress Guardian and Fairy(2 Huntress Guardians tend to buff the same stack, fixed by not stacking)

Using 2 Huntress guardians makes the boss wave last around 1minute, depending on your stats. 

Place the Builder/Summoner in the middle of the LT's so they will boost all the towers, Place your T-booster close enough to the fairy so they get healed if need be, and have your jester sit next to the monk. 

As Soon as the boss wave starts, begin mana swirling. dont let go of left click, and spam M. this will go on for about 1minute, if you find one of the evil heros not coming close to your LT's, walk over using your jester, agro them, then run back and commence swirling again.