This is an insane deck with a pretty high win rate — an excellent pick for ladder.
The idea is to go Manor round 1 along with your thrive units. We also have a Lesser Witch combo play which can be played whenever it suits. Then in round 2 play Sir Scratch-a-Lot, then Lilit's Omen to summon Koshchey and Kikimore Queen. Mantrap is played after for insane value — around 30 points. This deck is best played 2-0 but we have Mourntart as a short round 3 option. If you're confident enough, play Mourntart in round 2 to go all in.
When playing Omen, make sure you select Koshchey first then Kiki Queen to summon them in that order.
Watch the video for gameplay reference and strategy.