Play stage 19 over and over again. Use Ice Wraith/Fangblade/Yao Guai/Pharaoh Hound Proud banner.
Focus all attention on Yao Guai and Pharaoh Hound.
The enemy has no troops that use red mana but has Tai-Pan which gives you tons of red mana if you set up the board for it. I am literally crushing bounty with this team.