Smacking a horse is the equivalent of looking god in the eye while you jack off and call him a heretic.
Madness string 81342
I also just realized that the first two seasons had him gain super strength, speed and weather control. Season one's climax was about summoning lightning. Once he gets the hammer, then all powers vanish. Not narratively, but absolutely no one displays any super attributes anymore. It's all about pointing menacingly with a tiny hammer.