Vostrov saw that the spirit was more interested in preventing anyone from his side from entering the safe zone rather than killing him. That was how he survived that barrage of sword attacks. Of course, he was not going to die that easily, but he would die if that situation continued for another thirty minutes.
The sword came at him without pause; the transition between attacks was flawless, giving him no chance to counter. Each of his counters was countered. His big skill was out of the question as it required time to activate, and that sword was not going to wait for him to use his big skill.
Ironically, he was saved by Nosha, who tried to sneak into the safe zone when the spirit was on him. At the same time, he cursed Nosha for trying to use him as a distraction so she could escape instead of helping him. He would do the same if he were in her position, but that didn't stop him from cursing her and her ancestor for doing so.
