Invisible spell

[Postel]

I cant find way how to make invisible when it E.G. enters region.

Im sorry if it is a noob question, probably i have a bad day

 

[operator]

Depends; Do you want to the player who owns the unit to see him ?

 

[Postel]

yeah... i want to make somethink like this:
spell which make unit or object which will give some ability (in this case invisible) to its caster in some range

 

[Ralle]

unit enters region
add ability to unit

unit leaves region
remove ability from unit

??

 

[Postel]

Today i have realized two things:

That wind walk is not only spell which gives invisebility(By the invisible spell i thought wind walk. And if i want to make unit invisible by wind walk i cant only add it to unit. And it was the reason why i asked you for help.)

and the second is that i have really bad day i have realized that the ability ghost is the ability which i was searching for.

Thanks all people who reply and im sorry for my UNKNOWLEDGE about war 3 abilities and spells.