This deck mainly uses three groups of cards to play:

Cintrian royal guards, Siege and warfare cards.

There's a lot of cards that don't have value on their own but instead net you the right cards from your deck at the right time.

The goal here is to play two rounds (ideally skipping round 2 by passing or if the opponent passes you use an envoy)

Kerack city guard makes for a great round opener.

Queen adalia, reinforcements, Operator, megascope and Idarran are used for creating a shitton of royal guards who receive more boosts for every royal guard on your side of the board. Unless you have a super hard Madoc bomb removal deck or (I think) Rain deck, this will win you the round. I haven't tried this against monsters omomnom decks yet but have done very well against competitive Nilfgaard and Scoia'tael decks.

You can use the Rivian Pikemen with all those delicious warfare cards.

Siege speaks for itself, feel free to use Foltest's pride with the Cintrians for that delicious crew bonus.

Either start with siege or Cintrians, experiment with it as i haven't found the proper balance with it while I am writing this.