Design your own bird!
Okay, here are the rules. Pick any bird from the AB franchise except for the ones that are already in the game. (Also don't pick birds from AB Star Wars or Rio, those belong to other franchises.) Choose their weapon and off-hand item types, their rage attack, and classes. Try to pick abilities which are balanced but different from those used by the already existing classes. And who knows, maybe Rovio will read this thread and be inspired to use some of it in future expansions? We can only hope. I'll start: (You can do your own Hal if you like, I just chose him as an example.)
Hal
Weapons: Rattle (Stun), Scythe (Chain), Nunchucks (Critical)
Off-hand: Spoon/Fork/Spork? (Vitality), Cape (Vigor)
Rage: All pigs attack eachother at random for one turn
Jester (Motley jester hat with bells)
Attack: Does X damage, and target attacks his ally on the next turn
(may be OP with Brute-types, possibly reduce damage?)
Defend: Enemy attacks on target have a 50% chance of missing for the next 3 turns
Dancer (Flamenco sombrero)
Attack: Does 2x X damage to target, and X damage to 2 other random targets. 5% chance (per hit) to stun for 1 turn.
(This would be the low-damage option for fighting Dodge opponents)
Defend: Damage from attacks on target is distributed equally among all birds.
(For attacks which already hit all birds, this means that the damage to the target bird is reduced while the damage to the other two is increased.) Lasts 3 turns.
Mime (Beret, face makeup)
Attack: Does no damage directly, but target pig attacks a random ally immediately
(similar to Chuck's Lightning Bird attack, but on an enemy). Target may even attack itself
(especially if no other pigs are alive). Like Jester, this would probably have to be at reduced damage with Brute-types.
Defend: Enemy attacks on all birds have a 20% chance of missing for 1 turn
Dervish (Fez)
Attack: Does X damage. Target has 30% chance of missing when it attacks for the next 3 turns.
Defend: Enemies attacking the target have a 30% chance of becoming confused and attacking their allies on the next turn.
Ninja (Black mask) - This one costs LCs
Attack: Does X damage, has a 30% greater chance of dealing critical damage.
Defend: For 1 turn, damage dealt to target bird is capped at 50% of their maximum health.
(Thought about using Dodge and ignoring all damage > X, like the enemy ninjas in the game, but that would be way OP against Brute-types. This way, they can still be killed if they are below 50% health, and damage that does less than 50% of their max health already is not affected at all.)