Opponents such as Agents, Seraph or Smith have a high rate of reversal/counter which can deal large damage. On a high level, this makes offense not the most suitable option, as the more you attack, the greater the window of opportunity for your opponent to counter/reverse. Anticipate a punch or kick, and before it commences you must fully Focus. Take note of the opponent's stance, keeping a view of their hands and feet while still Focused. The precise moment you see the opponent begin to move their hands or feet to strike, press (Action) for a guaranteed reversal. The amount of damage dealt to the opponent here can be rewarding, as reversals are the most time sensitive and must be executed precisely during combat -- a misplaced reversal attempt can leave you vulnerable.