What has happened to PVP?

First off. The boards are random. There is no arguing this. Many before you have tried.

TL;DR- They are random.

Fast Mana heroes take 8 tiles to charge, 10 for average, 12 for slow. Can you please record a video of your fast Mana heroes taking more than 8 tiles to charge? (Who don’t have a Mana reduction debuff)

If not, then I’ll also assume you’re imagining things.

Also, huge tile cascades are super random but that doesn’t mean they are distributed equally. If you are only winning fights with huge combos, I suggest you start here to improve your raid capabilities.