[Trigger] Make passive auras activate/deactivate?

[IronForge]

Hi, I need to make my negative devotion aura activate and deactivate, something like immolation. All triggers have failed so far by adding/removing spells. Can't get the 'stop casting an ability' trigger to work, the ability is NOT removed (after the dummy immolation is deactivated).
Any way to do this?

Also, how do we remove an ability from unit after it stops casting that?

 

[Pharaoh_]

• Trigger1 Activation
• Events
  • Unit - A unit is issued an order with no target
• Conditions
  • ((Issued Order) Equal to (immolation))
• Actions
  • Set Unit1 = (Triggering unit)
  • Unit - Add <your ability> to (Unit1)
  • Set AuraOn = True

• Trigge2 Deactivate
• Events
  • Unit - A unit is issued an order with no target
• Conditions
  • ((Issued Order) Equal to (unimmolation))
• Actions
  • If/ Then/ Else
    • If (Conditions)
      • AuraOn Equal to True
    • Then (Actions)
      • Set AuraOn = False
      • Unit - Remove <your ability> from (Unit1)
      • Set Unit1 = No unit

 

[IronForge]

Thats perfect, could you explain the variables? Under what category?

 

[Pharaoh_]

Unit1 = Unit
AuraOn = Boolean

 

[IronForge]

Thank you. Any more troubles I'll post.