Want to make an item show a special effect on the hero with the item.

I have an item in my map called Demon Horns. Its a mdx that can be attached to a model using the head name. I want the Demon Horn item in my map which is the robe of the magi which gives the hero 6 intelligence. I want the person that has that item to also have the demo horns displayed on him.
-Hero picks up item
-Hero gets +6 int(like robe of magi) and demonhorns appear on the hero.

Can anyone help me with this? Thanx all.

You could just use the special effect attachment trigger and attach the model to whatever part of the body you want. (Head)