The Spirit Destroyer

Hey,

My hero (The Spirit Destroyer) has been having trouble to get his spells to work. One of the spells (Spirit Combustion) is working fine while the other one (Death Square) definately needs improvements.
I'm trying to do a trigger that makes units in a region lose HP. I believe the problem is that I'm making the triggers so simple, that it's not working the way I want it. Please help, or give me suggestions. To download press the file name under my post.

~BMANZZS

By the way, I don't know JASS at all.

woah, kinda confuzzeled
so is this a spell or just something to happen every time i unit enters a region?