Make air unit targetable by ground

[Linaze]

Hi,

I'm looking for a (neat) solution to make an air unit targetable by ground units for x seconds.
Basically similar to web/ensnare - with one twist - if the target unit is above water I want it to retain it's position and not move to closest shoreline.

Has anyone got a solution to this problem?

Cheers in advance.

 

[Wark]

Hm. I have never tried this, but do you think it'd be possible with a adding a morph spell with an amphibious unit version to the targeted unit?
Just throwing an idea out here.