Since surfer decks are all the rage right now I put together one that was fairly decent in climbing through pool 4.
Surfer decks work by buffing all 3-cost cards on the 5th or 6th turn filling your opponent into snapping for extra cubes or playing a card into a lane they THINK is a winner until Surfer shows up.
Surfer decks work best of you include Wong to give him two tours on the board and Sera to allow the 3 drop final turn. Adding Iron Heart is a good idea if you want to add a card to also drop into the Wong lane for another double boost but any other boost cards will do.
The Surfer deck works best if you play at least one 3-cost cards into each lane. If your opponent is winning a lane by more than 10 you should abandon that lane and group your 3-cost cards into the other lanes .
Surfer decks normally leave turn 1 and 2 without a card drop but you can use this time to psych your opponent out by saying "hello" or to very about losing. This almost always gets them to snap allowing you to respond in kind and surf your way to a victory by the final turn.
Be sure to play Wong on turn 4 if he's there and Sera on turn 5. If Surfer doesn't show up by turn 6 you can always try to Kingpin / Polaris combo your opponent into a lane or Iron Heart / Surfer the final turn for a decent and possibly game winning bump.
Vormir jacked up the synergy a bit but this version has Sabertooth included for that one off sacrifice of need be. You can also Storm Vormir if that suits you better but either way you won't lose a card using one or the other strategies.
Brood is included to quickly fill a lane and is especially useful for "The Raft" or the "+5" locations. Brood can be played on Vormir also as he will die but he'll leave behind two 2-power Broodlings to keep his legacy.
This is a fun deck with a few win strategies. Just be careful and read the board before playing a card.