Probably one of my better builds, used Banker for more cash each round, used Poisoner to weaken most units, Necromancer would attack and gain health from the back without being harmed (hopefully) the Card Master is really just a filler, Tamborinist allows the Necromancer to gain +2/+7 each attack instead of just +0/+5, and Donkeys would just strengthen all units from failure. overall I think I could have done better, upgrading my Poisoner into a Monster would have definitely helped, maybe swapping the Card Master and the Tamborinist and then using a Sniper instead of a Card Master could have helped, but I did pretty good this run. 
2 years ago (+1)
Made another good build, Mush Knight in front to dampen enemies' attacks, A Shield? to dampen the damage Mush Knight takes, Banker obviously for more cash each round, Longbow Man to damage enemies from afar, Tamborinist to increase Mush Knight and Longbow Man's health and attack. Once again, overall good build but could use some tweaks, like maybe using some Healers, or Donkeys / Wheat Farmers to help buff each round.
Edit: I'd like to make a comment about how my Mush Knight got to -1 health, but in the same turn, my Tamborinist revived it to 1 health, but it still died, I don't know if this is intentional, but I just wanted to comment on it because if it isn't intentional, it needs a fix.