Cobalt Plateaus - 12

Strategy
Wave 1:

You have to fight 2 Stick Pigs and a Rogue. Just attack the pigs every turn.

Wave 2:

Same as Wave 1. Be careful though, Bird Catcher might stun one of your birds.

Wave 3:

It's just a brute. Defend using Red's secondary skill when the Brute is about to attack. Otherwise, just repeatedly attack the Brute.

In Summary:
Lots of Common Pigs will appear in this level, so it should be easy.
 * Wave 1: Rogue is more powerful than the Stick Pigs, so defeat him first.
 * Wave 2: Bird Catcher can stun one of your birds, so he should be the priority.
 * Wave 3: Brute can deal BIG damage, so just beat him as you would before.