for me viper basically dancer but faster, melee, and more organized, once you play long enough you can tell which button will be highlighted unlike dancer which is RNG

my difficulty in viper now is still not used with the positional attack (flank and rear) because the class animation blink him left and right sometimes it mess up my position

i just ignored it throughout casual play since its not really a biggy, should be getting used to it after a while in the future