I found that grinding the arena with an anti firestall for a few hours is VERY succesfull in diminishing the ammount of firestalls in high ranks. Only a few losses matters alot and pushing those decks out of the Top 25 is very satisfying for me personally.
I also found my suggested steammachine deck is alot less succesfull then a poisonstall with bonewalls.
I also found that Bonestorms deck is no firestall/immorush and I therefore lost against him 4 times! (not on purpose since I was trying to get my own fire mark based deck on #1)
EDIT:
Having alot of fun with this atm!
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