Data from HSReplays must be interpreted in the right way. Remember that their ranking system is based on average results, collected from users of their Deck Tracker. This means, more or less, that this data is not universal for everyone and some decks may not perform as good (or as bad) as your own experience tells. Just because deck works well in rank 10-5 on NA server, doesn't mean that it will perform just as well in Europe or Asia on rank 20-10 (a good example is a Token Druid whose win rate on rank below 5 is 47% or even lower, despite what HSReplays says).
Sorry but no way Galakrond shaman is tier 4. LOL WTF? Quest Galakrond is pretty ok, definitely >50% win rate.
What sort of scrubs are playing this deck in the HSreply data?
Data from HSReplays must be interpreted in the right way. Remember that their ranking system is based on average results, collected from users of their Deck Tracker. This means, more or less, that this data is not universal for everyone and some decks may not perform as good (or as bad) as your own experience tells. Just because deck works well in rank 10-5 on NA server, doesn't mean that it will perform just as well in Europe or Asia on rank 20-10 (a good example is a Token Druid whose win rate on rank below 5 is 47% or even lower, despite what HSReplays says).