Affinitybreaker: 4 piece set - Grants C. DMG +30%. 50% chance to change Weak Hit to Critical Hit 

I have been using Sicia Flametongue as my Dec Def & Wkn debuffer on one of my Hydra Teams.  Teumesia is the primary burner, so Sicia gets to uses her A2 when burn is already out there most of the time.  However, I am thinking about trying her as the burner & debuffer.  That would be much more viable if Affinity Breaker worked against Poison Cloud.