If anyone is interested why I've given the pufferfish deck to edunavas and the fractal deck to Belt...
well... the fractal deck was strong, so I decided to use it against the stronger opponent (General)
and also edunavas already used the fractal deck last round, so they might have expected he would use it again...
although it seems it could have been better to switch these decks (purify against poison, fractal against bonewalls and devourers) at least we have 1 win and we are left with a good deck to serve us in the future rounds.