He stood there, unassailable to all of 相手's offences, never attacking & w/o any hostility in his intent
Yet when he defends, it's not really defending—but counterattacking
That's because when 自分 defends, he uses 相手's atk as a terminal to reach 相手's archē, cutting that instead
& 相手's last atk, their finisher, is the best terminal of them all...
Once 相手 figures this out it'd just be too late