Can a mystic adept use improved ability to raise skills in the sorcery group?
Would they count as combat skills or can you just not do it?

Thanks!

You can only use the ability to augment Combat, Physical, Social, Technical, or Vehicle skills... says so right in the power description...
No using it for augmenting Magic or Resonance restricted skills at all...

Keep the Faith

Yea, I know what the base book says, just wasn't sure if there was another similar yet different ability from a supplement, errata, or whatever that allows for mystic adepts to up spellcasting or counterspelling with a power.

Could always enter a Spirit Pact, many variations that can give interesting benefits, but as far as I know, the only way for a magical/resonance character to add bonuses to their magical/resonance abilities is to get a Mentor/Paragon

Keep the Faith

Foci work nicely too.

But Foci don't add damage directly, they add dice to the Attack, which could obviously add damage... But yes, they do help...

Keep the Faith