In the last 24-48 hours, two different trait manipulation combos appeared on tzumainn's site. They are essentially the same combo - target removal of a card with Carrion Bird's ability through trait manipulation (Old Nan, Rhegar's Harp and Lion's Gate, primarily). Obviously, this requires winning a military challenge, so it would be easy to say "they'll just kill the guy for claim instead of letting you 'bird' them." But even if that's the case, YOU chose the claim target instead of your opponent. That's huge.
To me, I think there is a hidden strength to these combos. Many combos suffer on some level from the limited use of many of the cards in it. The cards work great together, but if you don't get them all at the same time, they don't add much to your game on their own. But Carrion Bird is such a great card (1-cost neutral military weenie with stealth) on its own that your deck doesn't suffer much if you never get the trait manipulation card going. You probably have Carrion Bird in your deck already! And there is almost no drawback to it in the LCG environment (no Threat from the North or First Snows).
So I'm curious. Do people see Carrion Bird as an insanely strong, or at least utilitarian, weenie? Is it an auto-include in LCG deck? Do you worry about them when your opponent plays them? And how do you handle them if you do?