Angry Birds: KARD LOCKDOWN

Angry Birds: KARD LOCKDOWN is a game set in the Battle Mode that was previously part of Angry Birds: The Journey Past Piggy Island. You collect cards, which have MANY kinds of birds, and you can play on the Pork and Bird sides. Trade cards with other players and have lots of fun!

Story
After the Birds got safely back to Piggy Island, Corporal Pig came at them again, but got in a huge accident. Corporal Pig got healthy, but duplicated himself through cards, and he was locked inside. When the pigs did it again, they were succsesful. The birds realized that if they were to get their eggs back, they'd need to have cards too.

Worlds
There are lots of worlds, over 40. They all have 5 levels or so in them.

Criteria

 * You need to trade through the electronic, not in real life