Mara-net: If it's supposed to be a starter card, Good. Otherwise, 7/5 would be better suited.
Gregory: No worse than
Naginata, so AOK.
Roy: Close enough to Aok.
Brandy: The others have +3 damage, so why not this one?
Arynne: Aok if you really want to lose with a 5*
Tristan: Ok.
Drophox: UP. Just use
Revok.
Anthropox: Ok
Gigaphrox: Prolly OK, but depends on the minimum
Dr Whatt: Ok. Pretty sure the backlash would keep people from using him from everything else than the missions though.
Seth: Aok.
Chau: What maha said.
Alethia: Prolly ok. Might fall for a condition though.
Cin Cao: Ok enough.
Ryubi: Fair enough as a card, but OP ability.
David: Ok.
Socrates: Not gonna happen, I reckon. Since Saks could just Uragraks to cover for the damage taken.
Enta: Up, most likely. Compared to
Edwin, at least.
The Arms Dealer: Ok.
Ironkoi: Paper cannon. Can't think of any standard card except
Katrina that wouldn't be a threat to him.
Olaf: Ok.
Sylk:
Saki -0,5 rating.
Shade: Another paper cannon, except
Katrina too is a threat in the right hands.
Hash: One more stat somewhere.