you can add then remove an item Attribute bonus ability.
EDIT:
- Add Attribute
- Events
- Unit - A unit Starts the effect of an ability
- Conditions
- (Ability being cast) Equal to Add Attribute
- Actions
- Custom script: local unit u = GetTriggerUnit()
- Unit - Add Attribute Bonus Skill to (Triggering unit)
- Wait 15.00 seconds
- Unit - Remove Attribute Bonus Skill from (Triggering unit)
you can add then remove an item Attribute bonus ability.
EDIT:
- Add Attribute
- Events
- Unit - A unit Starts the effect of an ability
- Conditions
- (Ability being cast) Equal to Add Attribute
- Actions
- Custom script: local unit u = GetTriggerUnit()
- Unit - Add Attribute Bonus Skill to (Triggering unit)
- Wait 15.00 seconds
- Unit - Remove Attribute Bonus Skill from (Triggering unit)
Why isn't it good enough? it does what he wants it to do. But it's just up to the OP if he wants some system or not, I just gave him the simplest thing I could think of.
BTW, I'm not really a good or even a decent JASSer so forgive me for my mistake.