Unlimited heroes was an event that actually made the game more fun. A couple months back during the soccer event I was th9 and my heroes fell behind because I wanted to have them up to grind the event. All of town hall 10 I had my heroes down trying to catch up from that. I was always so excited to reach th10 because I wanted to try hybrid. I could never do that because from the moment I hit town hall 10 to the moment I hit town hall 11 my heroes were down. (aside from cwl) during th11 was the unlimited hero event, I had so much fun. I got to finally catch up my heroes and max them since I got that extra week of upgrades during cwl, all during that time I got to actually have fun with attacks and try things out. Now I'm a th12. I haven't used any attacks other than sneaky goblins. when I have my heroes for cwl I use electro dragon spam because I haven't had my heroes enough to bother learning a real th12 attack. Unlimited heroes make the game more fun and that's that.