H.Myrrh light breath or spirit breath

I have a +def -res H.Myrrh+2, was wondering if i should switch it out for light breath because it has on it DC, still have A-slot open for Steady Stance 4. I want to be able to bait out mage. I run a full ward armor team +12 to def/res. Something like Lighting breath(res) A:steady stance 4 B: Vengeful fighter 3 C:ward armor Seal: Distance Def 3 or Deflect magic 3. She still have lot of def from Steady Stance 4 and + def iv,(44+8=52+12 ward buff 64 def). Right now she has 30 res and can't counter mage, she get nuke hard. Worth giving up spirit breath?