heh the item in question:
And it's really not that imbalanced.
Anyways, I cannot combine any abilities. Although it appears that I only need four abilities for this, I also need two abilities based off of pheniex fire for the two attacks it has. (damage: 15 x 2)
As for making a trigger that adds the abilities when a person picks up an item:
yes, I could do that, but it wouldn't stack like it should. For some reason, WC3 doesn't like adding abilities to a unit that the unit already has, and so if I had two of the same item then it wouldn't add the abilities that it already gave me when I got the first item. (I hope that makes sense, I don't think I really explained it to well... x.x)
At least, I think this is true... I thought I tried this and it didn't work.
Anyways, I know this is possible because of items like DotA's Sange an Yasha, or Orchid Malevolence. (
DotA-Allstars.com - Items ) (At least, I think these items are using more then four abilities, because I don't know what abilities they could be using to combine two or three of those effects listed.)