I know dragons get a lot of hate, but I’m actually having a lot of success with them. Once you get a nice army of knights built up, you can actually spam Pyros to take out ranged units for you.
Here’s my combo: Knight + Pyro + Mummy
Knight: His role is obvious
Pyro: Takes out Mummy, Firebolt, Cannon, Arblaster, and other ranged units
Mummy: Supports and replenishes knights
Blizzard: Kills Skulls & Wolves
Hero: Pushes ogres away from units; screams to remove slow effect.
So far, this combo seems unstoppable. I don’t even need wolf because they just slice through everything so quickly. /And/ I get 2 dragons per raid.