In the second Key, he has multiple domains that are always active in a fight (most of the time even when not in a fight) meaning if the target(s) are in the range they will get affected by the Electromagnetic, Seamless, Dharma, and Darkstar Domain.
Electromagnetic - scouting, attacking with lightning, plus enhance his flying sword speed.
Darkstar - increase his speed, defense, attack power, plus can conceal himself within its range, it also has a repulsive force - the closer one is to the user, the stronger the force, use the void (space) to repel enemies so you'll have to bypass spatial manip to even get close to him, not just gravity manip. It can also invade an enemy and make him/her unconscious plus sense things.
Seamless - a stronger version of the repulsive force from the Darkstar Domain, that will also weaken the incoming attacks (all kind of attacks as it blocks divine powers, soul powers, laws), increase the power by 30 percents and weaken the foes for this amount, can generate all kind of elements/phenomena within the range and create multiple layers around the user that need to be bypassed to reach him.
Dharma - control the five elements and the spacetime within its range.
They are all active, then he has his Baleful Aura that will freeze all things within its range and shatter them to nothingness and decrease the speed of these foes.
Then even if speed is equalized with all these debuffs/buffs and then he has his Infinite Law Art which increases his speed by 50 times.