I don't think he got a lurk kill once in map 1 or 3. Idk he plays it like a line up bot or something. When i see benkai's viper its like a masterclass
i dont think he knows to lurk. all the lurkers are very well aware players. benkai, com, johnqt etc they are all someone who uses non duelist role only and so they know the awareness. on the other hand yay is a duelist player and he always used to get set on a spots by his teams for kill. but all the backstabbing require heavy playstyle awareness of the opponents. so i think he can improve in lurks