i like the knockback idea but he is way too strong for being a common. he can push back all your creeps and your carry can take his time to kill them or make him the carry directly. if he stays like this its def a unique tower and his knockback needs a chance to proc. unit= one tile? would go with 0.5 tiles per knockback.
Eek, why do I make over-powered towers =.= I wasn't sure the amount of distance in units, but probably one tile would be too much, I agree. What would be a reasonable chance to proc? Similar to Miss Jilly/Beaver perhaps, would make it less over-powered?
Yes, I'd say with a small proc chance (5% maybe?) and knock back on hit instead of damage would be pretty ok for common tier.
