Open with 1 - 2x  to apply vuln, then   into  (+ primary  if opened with 1 combo point buffered). With full combo bar:  quickly into , with full combo bar again use  for double damage then finish with  into . Repeat two - three times without  till its off cooldown again (Fighting Rhythm talent). Slightly susceptible to running out of Stamina (Spirit), so sometimes it's better to just charge up combo points with primary.