Someone has already pointed out that Kimimmaro took out the Sound 4 without much hassle when he was at full health.
Kabuto - yes he knows all of Oro's techs.....but that works both ways
Kimimmaro - tbh I can imagine sound 4 + Kabuto attacking Oro but not him.
But lets say he does he would be Oro's biggest difficulty but Kimimmaro as far as we know doesn't know any sealing techs which means Oro can't be defeated if he takes Kabuto out who probably does know how to defeat Oro.
Kabuto - yes he knows all of Oro's techs.....but that works both ways
Kimimmaro - tbh I can imagine sound 4 + Kabuto attacking Oro but not him.
But lets say he does he would be Oro's biggest difficulty but Kimimmaro as far as we know doesn't know any sealing techs which means Oro can't be defeated if he takes Kabuto out who probably does know how to defeat Oro.