Abilitys with invisible Button

[merlinds]

I have noticed that there are some pasive abilities like: Pasive invisibility, loctus, and invulnerable (neutral). That does not shows an icon on the unit, but still applies the effect of the ability.
I want to know if i can make another pasive ability to work like this. For example.
I take Spiked caparace, set all stats to 0 exept for the damage reduction option that i set to 1.
The pasive now makes the hero invulnerable but attackable.
Then i "turn" it into a ability with invisible button and add it to a hero, turning the hero invulnerable, but without occupying a button slot.
Is this posible?

 

[luorax]

Create a dummy Spell Book, place your custom Spiked Carapace inside it, add it to the hero. Then create a trigger like this:

• Untitled Trigger 001
  • Events
    • Map initialization
  • Conditions
  • Actions
    • For each (Integer A) from 1 to 12, do (Actions)
      • Loop - Actions
        • Player - Disable Spiked Carapace for (Player((Integer A)))