Need Help makein Spell : Hell Angel

Need Help makein Spell : Hell Angel

Can Someone Help me Make my spell Hell Angel
This is wat it does
SUmmons A Angel of hell and Then It Attacks an Area of 500 with A laser ( Or something Else) and deals 500 HP per hit. Lasts 10 seconds. [/u]

This is more a problem of animation... All I can tell you is that you should just create an unit at a point and have it do Area of Attack (like Catapult) upon the area or something like that. It's all in the effects and the unit itself.