So SP. You decided to raise the cost of monsters in the team shop making it even more harder for beginner and middle tier players to catch up and be at a competitive level. Then you implemented a Rage Team Wars where teams can potentially earn twice the amount of coins they'd usually get to at least minimize some of the damage and backlash that will obviously come your way.
However, you also implemented a special team wars at the same time involving the Superheroes and Families books. 2 new books that do not contain any monsters that a f2p beginner and middle tier players could have so they're even more screwed for the next 2 days as they're either forced to struggle with whatever dragon monster they have alone or are forced to sit out team wars for the next few days entirely. This means they'll be even more far behind from the other players who have played long enough or are paying their way to progress.
If you don't like your non paying playerbase in the game, you should just outright say so already.