Passive Invisibility

Hi all, is there any passive invisibility ability (such as ghost or ghost visible) with a field like "fade time" or similar so that if I add this ability to a unit it will have a fade time (a time during which the unit can still be visible)? I think that Rikimaru the Stealth Assassin from DotA uses a similar ability. Thanks.

This is just something I randomly remember hearing somewhere, so I can not guarantee it's accuracy, but what I did hear was that a unit casts invisibility on Riki repeatedly. A guess might be the invisibility effect given by potion of invisibility, because that can target a single unit and it has a fadetime.

Permanent Invisibility

Neutral Hostile -> Permanent Invisibility

It has a field of fading time.

Really? It seems very complicated and I need a passive ability Thanks anyway.

It doesn't seem to have a "fade time" or similar field... It just has a "2" in the "Duration - Hero" field, what does it do? Thanks.

That is the fade time.

Its the invisibility spell on the Far seers wolfs.

Oh, I didn't know that blu_da_noob :) Thanks, rep added! You were the first to answer correctly! Thanks to all the others too.

P.S: just to know, adding a duration to the ghost ability will have the same effect :)

Btw, the reason Riki has invisibility cast on him, or so I've heard, is to allow silencers global silence to stop him from becoming invisible. ^^

Zhat is correkt Grasshopper.