Edward's Martial State elevated his status as a Martial Artist by leaps and bounds, allowing him to break past the limits he currently had.
As someone who was able to deal with two Legrises without resorting to this form, facing three of them in Martial State felt like nothing short of child's play.
They were, at best, ragdolls that were being flung at him without an iota of consequences attached to them.
The only major problem was… the black energy.
'I see. So this is what Kuzon meant.' Edward's thoughts trailed as he noticed the corrosive effects the darkness had on him.
Or rather, his Aether.
Edward's body was coated in incredibly dense Aether, and he kept supplying his defences while getting rid of the corrupt one at a lightning-fast rate—much faster than it was taking for Legris to destroy his Aether.
In essence, he had the advantage when it came to his defences. However, that came at a steep cost.