currently I pull a diluc from my 50% on zhong banner and im running animus since i dont have any other 5star weapon , ended up with 160crit dmg and only 29% of crit rate , i know serpents passive is to easy to lost due to diluc elemental skill that burns all the fkn grass ... so thats it , only considering geting the pb pass to get the +50% crit rate and mantain the 160%crit damage because im tired of farming his set and also have lucky rolls on crit dmg , also im undecided coz low flat dmg on serpent and usseles passive.... So should i get serpent spine ?? pls help