Help with looping JESP spell

[Cheezeman]

Hey dudes!
I'd like some help with a spell I'm making. You see, I want to make an effect "fade out".
More specifically; I want a buff of 80% attack speed to reach 0% over 20 seconds.

I tried this by creating a dummy, and decreasing the level of "Bloolust" (which had 20 levels, one for each second) and applying it to the target every second, but I couldn't get it to work

Any ideas on how to do this?
+Rep to solver, as always

 

[AJalex]

You can use the dota idea for charge of darkness. for example use Purge ability on your unit (using a dummy) ... and even better it stacks ... (if i remember well)

 

[Cheezeman]

You can use the dota idea for charge of darkness. for example use Purge ability on your unit (using a dummy) ... and even better it stacks ... (if i remember well)

Using a negative purge might be a good idea, I'll try it tomorrow.