Why is Chimaera absent from my Fleet Arena shard and does this mean I shouldn't develop it?

Thanks for the advice, everyone. Think I'll play around with Chimaera more before upgrading. Empire are my second strongest squad, so Imperial Tie and Tie Advanced are pretty much as strong as my Rebel ships. Home One is actually much less powerful than Executrix or Chimaera, but the assist-to-gain-protection strategy just works with the ships I have. I began with Executrix, but after a while his special wasn't ending the battle anymore.

I agree, Tie Bomber will really plug a gap in Imperial fleet. Definitely farm it and see how it goes.

Incidentally, what is the strategy for Chimaera?