Light Cavalry costs 15 Recruits Attack 16 Charge 9 = 25 max damage
Dragon Rider
Cost: 3 Gems, 11 Recruits
Attack 8
If you have Dragon in your hand: Enemy Tower - 10
Keyword: Soldier, Charge(7)
With a potential max damage equal to Light Cavalry with the condition of having a Dragon on your hand, also a lower chance to charge with base attack of 8, you still think it's really overpowered?