Mountain dragon needs a rework. Cloud dragon needs a buff.

It's so pointless. Why would I want 10% increased damage to towers/dragons when I can just get 8% increased AD and AP to deal increased damage to everything from an infernal drake? Maybe give defensive bonuses instead, like 6/12/18% damage reduction (Or put it on the same scale as infernal drake, put personally I think that infernal drake is too strong and should be brought down to 6/12/18% too). Maybe make the defensive bonuses apply to your towers/structures as well. Defensive bonuses are still thematically in line with the mountain dragon, and far more unique and worth contesting.

Cloud dragon is also just really underwhelming. Maybe make some of the movespeed work in combat/change it to a percent increase as others have suggested.