Northern was not used to such a high level of speed yet. Sometimes he miscalculated the time it'd take to land some strikes—since All Eyes had initially enhanced his vision, he was often used to calculating his delivered strikes before rendering them.
And now that All Eyes had evolved due to Chaos, that particular feature of his had gotten way better ever since.
Sometimes, he just stared at all his opponents, determined their locations, and with spatial awareness, he didn't need to look a second time.
However, with Chaos Eyes' four compartment view, he could now even do better. His seeing was optimized beyond human, perhaps even monster standards.
If there was anything Northern shouldn't be worried about, it was seeing at all.
Cal, after delivering a sick blow to one White Walker before him, finally paused and surveyed the battlefield.