I made this deck to get the Just between you and me achievement and trigger 5 secrets in one go - it's better as a throwaway wild game to avoid lossing ranks. It's made up of the secrets you'll need and also some draw cards that'll help find you the ones you 'll need quicker.
The combo you'll want is to place a Righteous Protector then the 5 secrets you'll need are Avenge, Getaway Kodo, Noble Sacrifice, Reckoning and Redemption. You'll need your opponent to have a 3+ attack minion so it triggers Reckoning.
There's Oh My Yogg in the deck, but it's too risky to use as one of the 5 secrets as you can't guarantee your opponent will cast a spell so keep it for early in the game instead.
Emperor Thaurissan and Cariel Roame help get the secrets to 0 cost pretty quick as well to help completion of the quest.