"Doodad Disguise" and "Complete invisibility"

[Marsunpaisti]

I was wondering, how to make a spell that makes you look like a doodad or item, so, that when you activate the spell, your hero will turn completely invisible, so that you cant even be detected with truesight, but you can still see your hero as the owner, and then, in the place of the hero will spawn an item or doodad or something (not random but one that you have set in the editor) until you cancel the spell, and then you will be visible and the doodad / item will disappear.

 

[Dynasti]

add perm invisiblity, and show unit (false). Then just create a doodad model where he stands

 

[Syntic_Arrow]

must the hero be immoveable or moveable while under the effect of the spell?

 

[Dynasti]

your choice