Prince + wizard is doing some crazy work for me in this meta. No one uses prince anymore, I know, and wizard isn't the most popular card, but prince/wiz combo has taken so many towers for me, especially at the start of games. A lot of decks just don't have good counters to this. Any use of goblins, ice wizard, princess, minions, minion horde, etc are going to get eaten up. Mini pekka and barbarians are better counters, but are still going to die with the prince still alive, assuming prince is coming from a charge.
And good luck to you if you drop a pump at the start and I drop prince/wizard. That tower is 100% dead.
That's definitely not true. Even $50 would take you a pretty far way into legendary arena. You'll never be in the top 200 without spending a boatload of money, but you can comfortably be in legendary arena with a few bucks. Of course, you can reach legendary arena as a totally F2P player, but it's hard to climb through legendary without spending SOMETHING.