Matriarch flip side

Can she still get healed if the fowls are coming from the trash with Darken the Sky? 

Yes she can, as she heals when they "enter play".

adding on to Matriarch real quick, Fowls destroyed by savage mana deal heros damage again right?

No, as cards under Savage Mana are considered blank, only retaining their Hero, Villain, or Enviornment card status while under there.

oh ok, thanks