Here are some stats from rank 5 to legend:
Some tips for your grind:
*My tactic was to keep flooding the board Vs control decks and fight for board control against all other archetypes.
*Try to get the Cheapest opening hand after the mulligan.
*Sir Finley Mrrgglton : My favorite hero powers are- warlock > hunter > shaman.
*Keep Mark of the Lotus only if you already have one or two 1 drops before the mulligan.
*Don't be afraid to play your entire hand- Always wait for holy Jeevesus.
*I never kept Hobgoblin in the mulligan, keep that in mind.
*I strongly advise to keep the chicken ;)
*I took the core deck from Tempostorm's Meta Snapshot and made few tweeks that helped me get to legend this season :)