As Eliza hugged Evan from behind, her ether flowed out of her body and permeated into his, conducting a thorough analysis of his condition and her brain started working on how to go about healing him.
"Ah, you're here. That was faster than I expected."
Evan remarked calmly, lightly swinging his arm to flick away Darfin's blood from his hands.
After he was done gathering enough 'evidence', he decided to give the man a taste of his own medicine and that led to him repeatedly punching Darfin's chest over and over again until he eventually broke open the man's ribcage and destroyed his heart.
His individual punches were not strong enough to kill the weakened man but were more than enough to inflict severe pain with each hit.
Evan also cut off Darfin's left arm as well, freezing the stump with ice and then nailing his legs to the ground with the Unforged.