Temperarly change owner

I want to make it while you purchuse this one item, you are not allowed to use the rest of your heros. I made it right now if you use the item, it changes the other heros to Neutral Extra. Once you use another item, it picks every unit in a region. If the unit is owned by Neutral Extra, change owner of unit varible (I know the varible is set right). What am I doing wrong?

Bump

Why isn't this working? It should work. I tried change unit to neutral extra then in a differant trigger, I set change owner of unit varible. Could changing the unit's owner modify the unit varible?

While this is not exactly answering you question as to why your method doesn't work, this is a suggestion for a possible workaround. Since you are just trying to prevent usage of a number of heroes, would using the action "Pause unit" work for your needs? You would then use the action "Unpause unit".

Thanks. The Pause/Unpause works better than switching owners, and it works also .