@bf10
You’re probably right that the only way to consistently accomplish that objective (and several other objectives, or to consistently win in arena at all for that martter) is to have premium classes. Not to mention how much it helps to have Legendary set weapons, off-hand items, and banner parts, which also require a fair amount of work to acquire.
The arena is not much more than a cash cow for Rovio/Chimera. Doing well in the arena doesn’t help you in the rest of the game (with the exception of being able to get Enchantment Shards on the weekly reward wheel, but of course you have to do REALLY well in the arena in order to get more than an occasional handful of shards). Once you accept that fact, then you’ll have to choose whether or not you want to take it seriously (which most of posting here have, because we find it a fun challenge, I think), and do the requisite hours of grinding accordingly. Accepting it for what it is also has the added benefit of making it less frustrating; when you realize the odds are against most participants, then you’ll have lower expectations of winning, and be less disappointed when the game “screws” you by giving you the “win 5 battles with Thunderbird” objective. :)
That said, I’ll take a stab at suggesting a strategy for you to complete the “only kill the banner” objective:
– Firstly, if you have the Valiant banner set, use it. Other good sets for this objective are Blazing, Sinister, Mighty, and Angry. If you don’t have any complete banner sets, use a Critical Strike top, and a Might flag.
– For your emblem, I’m not sure what to suggest. What are your options?
– As for birds, I’d say to try Samurai, Capt’n, and Rogues. Feed Samurai the chili when you can (or Capt’n if the banner isn’t the highest health opponent). Use Capt’ns buff on Samurai whenever he’s not yet buffed (unless Samurai’s at low health, of course). Rogues is good simply because he only needs to attack once to do three turns’ worth of serious damage (so it doesn’t matter if he gets knocked out a lot).
– Make sure your weapons are not Chain Attack weapons (Critical Strike is preferable, of course), and off-hand items should be Might if possible.
– Maybe the most important advice is if you come up against an enemy team that seems like it’ll be problematic for this strategy (for example, an enemy Chuck with a Mana Shell set, or and enemy Tricksters), then don’t worry about the objective and just focus on winning that battle, so you can try to complete the objective later.
