It's meant to wear it with Garuda which has 20% DD that is why it has only 2 parts. Well, chances are you got SMOK + Tyr which will give you 25% DD. Do the math and it's 45%, adding good critical options. Perhaps you're going to wear Wiz Ring as well. If you want to add 10% to Cloud, it's 55%. Half of the time you gonna deal twice the damage, doubling critical damages as well with the extra boost from Wiz Ring. I don't think it's wise to add another DD option to it.
EDIT: Why did you put this thread in the Designers Lounge: Request tho? :nuhnuh: