Here's a deck for the holidays that will help you play lots of penguins and win lots of 2v2 games! The main strategy is to secure the board early, get out Hepzibah (the orange penguin) first, and then you can get lots of value pumping out copies of penguins. Miss Agata (the green penguin) will help protect your penguins with warded. And the most valuable aspect of the deck is Marching Orders, which is run in the deck and also generated by Miss Agata. You can use Marching Orders to keep your penguins safe, marching them away from harm, to help remove minions which would otherwise be out of reach, or to get around blockers and make a final push for lethal damage.
Check out some gameplay and an explanation of the deck in this video! https://youtu.be/5i0On3DDThI