Shockwave Type Impetus

[Xbing]

I know this is quite impossible but i want to make a straight line skill (something like shockwave) deal damage like impetus on the first unit it hits. i tried using a dummy unit but it always screws up. Things like shooting off in the wrong direction and lagging behind the original missle were the problems, so I decided to seek help. Is there a possible solution without dummy units? Im tired of them. GUI please.

Thanks.

 

[Nexor]

There won't be a solution without dummy units, you could copy the mirana's spell (search for it here) and at the damage part simply calculate the distance between caster and target and deal % of it.