Currently I'm a level 165 wizard, and require a little bit of help since I play with absolutely no tactics whatsoever, and I throw the notion of number crunching to the wind. I'm afraid I can't make headway into the game soon.
My strategy so far is to throw up a few towers at chokepoints and fill them with dual red/purple gems. Works well so far, but it doesn't get the job done in Endurance. I've read some of the guides here, but I still can't wrap my head around them, especially on the formulas. My questions are:
1) How do I set up a Mana farm? 2) How should I allocate my skill points? How many? 3) What is the best way to combine gems, I've heard that combining and upgrading reduces power by a long way?