Okay, well, let's talk some general strategy.
1. Mask of the Matriarch.
This thing has 9 HPs. There are 2 of her 7 non-fowl cards remaining in her deck that bring it back into play. It restores 2HP every turn and plays an extra villain card.
So, if we destroy it there's about a 1/3 chance she gets it back. Is it worth it to really go after this, or would it be better just to leave it be?
With mask in play, she flips every ~5 turns. When she flips the first time she'll regain 2 HP per bird we've killed (since they just got reshuffled into the deck).
With mask out of play it can take as much as 10 turns to flip.
Damage reduction of 2 can block basically all damage we receive (unfortunately we have extremely little damage reduction... we really need Argent Adept's Counterpoint Bulwark) Damage Reduction of 1 covers a lot of it. Especially destroying fowls after she flips the first time.
So, let's see...let's do a worst-case scenario for damage received by the time she flips if we kill no birds.
That would be all birds come out next turn, then we wait 3 turns for her to flip...
Rooks: 6 damage per turn to highest HP=18 total damage (if evenly spread, ~4 damage/hero)
Jackdaws: 3 damage per turn to everyone=9 total to everyone
Cacophony: 6 damage to everyone
Vultures: 6 damage per turn to lowest HP=18 total damage (if evenly spread ~4 damage/hero)
Crows/Ravens: 6 damage to all but 1=36 damage total (if evenly spread ~7damage/hero)
That comes to about 30 damage per hero. Which kills everyone.
Of course, that's the worst-case scenario...probably if we ignore the birds we'll suffer about half that, which is still rough without healing/Damage Reduction.
IF after she flips we can have the Counterpoint Bulwark out, and if Tachyon had some Accelerated/Hypersonic assaults, we might be able to really control the battlefield for that time...which could be long enough to take her out. I dunno if we can weather the storm to make it to that point though (a lot will probably depend on her draws).
Anyways, in summary: the idea would be, just hit her/build up/take out the non-mask cards until she flips. Then take out the mask, and all the birds while we pound on the matriarch with what we've got and try to keep the lowest HP hero protected (ideally with damage reduction).
Thoughts?