A good place to be

So here's a good place to be, as you can see from the screenshot above. I have completed all Quests through 12, which gives me 4 extra hearts, for a grand total of 9 hearts maximum. I also have three hero cards: Finn level 2, Jake level 2, and Winter BMO level 3.

If you're wondering where I got Winter BMO, it's from the code redemption. Go to Settings and click on the code redemption.

This will get you a new hero card with which to play. The third hero card is important, because we want to keep all of our heros at the lowest possible level. If all heroes are at level 3 or lower, it costs only 1 heart to play each Deck Wars match. And with low-level hero cards, your opponents will also be low-level decks, which will make them easier to defeat.

Also, find more redemption codes here: http://cardwars.wikia.com/wiki/Redeem_Codes

Not all codes work. Some might get reactivated around the holidays.

I have the following deck. It's a very simple, starter deck that would be able to defeat only the lowest level opponents.

Travellin' Farmer x4
Ethan Allfire x2
Cornball x2
Mouthball x3
Brief Power (use redemption code BRIEF)
Cerebral Bloodstorm (use redemption code C3R3BL)
Comfy Cave
Corn Dome
Volcano

...which is 16 cards, all that a level 2 hero can handle. Is it a great deck? No, not really. But hopefully it will be enough to win a Black Card in the tournament.