I finally beat him. Â I got lucky, but gained insight in the process.
I beat him because I got lucky on rebounds and hit the boss from the back several times in early shots. Â This is not the preferred way.
What I determined instead (mainly from watching opponents in arena matches) is that what you need is a very powerful white bird with superpower regeneration of 3 turns. Â Damage the boss as much as you can with the first three birds, and then take him out with a ridiculously powerful white bird superpower shot, before he can attack. You then will have enough power left to take out the minions before they defeat you.
If you go into this match with only 5-turn regenerations, you’re going to lose, because you can never take a superpower shot before the boss attacks.
Level 20 isn’t enough. Â You need a level 40 or better bird, so you may have to grind a while to earn evolution material. Â (Keep taking the occasional shot while you grind — you might get lucky like I did).
Jester
P.S. Please note that these forums are dead in comparison to the in-game ones, at http://forum.angrybirds.com. Â The Nest here is great for AB2, etc, but the real chatter is at the other site.
Jester