Hi, long time arena player here. Some may know me for the Collection Tracker webapp I did eons ago.
I started a new arena project at the time when Blizzard didn't update the arena rotation for their website. It has since been up to date, but I decided to finish it anyway. My goal was to make it easier and quicker to find cards, and there's also a few helpful sections like Secrets, which cards are most common, win rates, highest chances for transforming a minion into taunt/rush etc, and average stats for each mana pool. Let me know if you find it useful!