Bluetracker
Tracks Blizzard employees across various accounts.
Arena buckets and balance update
https://us.forums.blizzard.com/en/hearthstone/t/arena-balance-and-bucket-updates-april-17-2019/3867
Rogues should be closer to 50% now and we made bucket adjustments. We will do another adjustment after the data is gathered from these changes.
Chakki
We didn't adjust Rogue buckets so that we could have more accurate balance adjustments. Rogue buckets will be adjusted alongside the balance adjustments for other classes.