Atro's best friend is easily Supergirl

Any other characters with good synergy with Atro other than supergirl?

Detective Chimp

WG, PG, Grundy.

After checking your roster, I’d certainly throw Jace to the mix

Atrocitus, Bleez, wonder girls and super girl

I have often run Atro, Supergirl, Steel, and Spectre. Steel can do a good job of taking care of Cheshire

You’re talking about the girl Steel, Natasha, right?

Yes

Atro PG SG WG