Post-Crisis Onyx decides to try taking on each of the Robins. Fights take place on Gotham rooftops and the Robins get no prep. Everyone but Damian takes her on in their graduated role.

Round 1: Damian Wayne
Round 2: Stephanie Brown
Round 3: Tim Drake
Round 4: Jason Todd
Round 5: Dick Grayson

H2H only. If she clears, how does she fair against each of them with their equipment?