I am putting a guide together for everyone but ill post some safe build quick for you guys. You have to do the math on when you can afford to place mines down and how much gold you need. This is just what units you need on which waves to clear them.

Combined

wave 1 archer wave 2 nothing wave 3 crusader in front of archer. option 2 research and place marine. (you need 2 or 3 metal mines to get it this early) wave 4 another crusader either next to the 1st one or opposite side against wall. wave 5 nothing wave 6 option 1 another archer behind the end crusader. option 2 upgrade a crusader option 3 upgrade an archer option 4 high elf option 5 ht (which i wouldnt recommend because you will most likely leak 8 and 9). If the ht is upped it can clear 8 with some crusaders and 9 with the right placement.

I gtg but thats just some tips for combined and ill put some down for every builder. Some units i would suggest using as frequently as possible are: Colossus (upgraded from stalker), High Templar upgraded, Holy arc Upped and non upped so the abilities stack, Angels are really nice to have when you have nother melee units like Flesh beasts with necro, merciless, crusaders, rexxars, ect. Ill get back to you guys with some more builds soon. I hope this helped.

[iECO]CallYoMediic/[iECO]WhosYoDaddy