I dont mind the Idea, would have liked a difference between air/ground units anyway. I think MR hits air too.
In classic TDs (wc3) most splash effects only hit ground stuff.
But that idea wont work (well, due to the +1base dmg ^^
Lets say on a 500 rounds game, every 10 rounds 5 Units spawn. That would mean 250 units and 250 base dmg increased.
I like it more if there would be some targeting restrictions for towers. Dande/Solara/Balu (you get the idea) cant target Air units at all. So you would need one AA tower and a Ground tower OR 2 Towers who can target both types.
I know what you mean. I think we can give some special effect for this tower like when equip longbow it can only attacks Air unit. So even when there is no Air unit, it still can gain base damage from land unit.
Maybe some restriction like deal 30% less damage to land unit perhaps?
Im fine with that "Can only attack Air units if a longbow is equipped" but thats a serious drawback.
Lets say "When equipped with a longbow, it can only attack air, but is adept at it. Gains: +1 Multicrit and +1 Range).
Secondary effect: Each hit on an air unit gives a chance to increase the dmg dealt to air by 5%, while a Longbow is equipped.(Stat resets when no longbow is equipped).
So there we go with an reasonable anti air tower.
Well, dont know how "hunter and his dog" would be a good name. How are the hunters called, who handle Hawks? Falkner? not sure in english. Maybe give him a 10% chance that his own Bird (Eagle?) kills the air unit...