devil spirit question

hey guys. i`m thinking of buying a devil spirit. i also have wings , and chinese wedding dress suit. can i wear it and the wings or wedding dress and hat?

and besides the 15%hp and 15%mana extra, do i get something else? like a special attack or something?

and do the different colors mean something or they are just for fun?

The colors are just for fun, but the other feature they have is a zerk like state for 10 minutes every 20 minutes, you activate it in your inventor (I think)

1.The colours dont affect the devil
2.Devil spirit gives you 15% more Hp and MP and a buff which lasts 10minutes and you use it once in every 30 min that gives you 20% more phy and mag dmg +10% more moving speed.

There is also a devil spirit S which gives you 20% more hp&mp and can be won at magic pop.The buff is the same as on Devil Spirit A grade.