The initial clash of blades happened faster than an ordinary human eye could detect. Even with their perception nearing the superhuman, Only Angelica could truly see what was happening during the duel between their fearless leader, and the monster which he was fighting to the death.
But the moment after they disappeared, the two figures re-appeared. Both of which were bleeding, albeit their cold and dead blood oozed from their wounds slowly. The injuries sustained in the brief exchange were superficial, and nothing that their lifeless bodies were incapable of healing in time.
Gwen suffer a curved cut across the cheek, while Zane had been slashed across the eye. The wound was shallow, but oozed with his coagulated blood nonetheless. And yet it did not scratch his vision.