At the OP, look at my other posts on Raspy through out time.
At the Viking, "Perdita is a rough match for Raspy in general" incorrect she is a tough match for everyone in general. She is argueably the best master (argueably...lilith and nicodem are up there).
Other than that.....I have played Lordfishane and his crew a ton, I have had the better of him through out time. That is until this past weekedn at a Tourney and he got me and finished 2nd by 1VP. He picked up this game faster than anyone I know and is a good player. That being said there are three ways to engage Perdita and her crew......by melee monsters like Joss, Johan, Cerebus, and Marcus (yes I play 2 master games), by Decembers Curse and Ice Burst Strike, and Ice constructs or Ramos and nids/gamin bursts.
Obviously melee tie ups are great versus the ranged natiness her and the gang present.
Dec. Curse with a high mask and a SS on top and continually tagging.....someone around her that has lots 8+HP can wring her bell. She will soak 4/8 if you do it right. (lets not bring SS protection into this as a goal should be to suck her SS dry anyway). Then when one target is killed and therefore out of Overpower cast it again and lay the templates over her and repeat.
Icy Burst isn't as nasty but late in the turn when cards are low it can do damage indirectly.
(all of the above is indirect which cannot be avoided)
the same idirect damage can be done with ice constructs or ramos and his deal.
Ice mirror should be avoided vs Perdita. Don't forget Quick Draw (name?) is a "0". So you know when it is up, and it shoudln't kill you anyway with SS and Dec Touch available (totem casts).
As was said earlier, you can try defensive Pillars and White out......depends on what your opponent is going for......in my experience versus Perdita you slap her around before she does it to you.