Trigger question

Hi,

I made an unit ability with area of effect damage out of the healing scroll. Then one of my heros got the ability.
But now I have one problem with it. It works well, but if the hero kills units with this ability he doesnt get money for the kills. With all other abilities and attacks the bounty is working.
I think it is because the ability is based on a healing but not sure.
Now I am looking for a trigger that can help me with this problem. Is there a possibility to detect when the ability is used and what units are killed by this ability? Then I could reward the player through a trigger.

Thanks

Drevlin

Good luck solving that...