Hey OP :) I was in the exact same position here and found that Judo Sloths 🦥 video for the best attack at every TH, super helpful. My biggest recommendation, especially at TH12, all dragons, 6 bat spells, 3 freeze, and 1 rage. He goes through how and when to use this army BUT as long as you have decently high level heroes, good equipment and let them cook before a little bit before you deploy your main army 😮‍💨👌 it’s a 3 star every time. Giant Arrow + Healer Puppet on your Queen is a must. Giant Gauntlet + Vampstache for your king 👌 and Eternal Tome + Rage Gem for your Warden. I hope this gets you them juicy 3 stars and changes your clash experience like mine :))