Cloth's Powers question

Hi

First of all, nice website. It's my first post here, I don't have download the game yet, but I have two questions.

I understand that there is 5 classes in this game, one for each of the 5 most famous bronze saints.
Every class have a lot of power, all connected to the powers of the five protagonists, unlocked level after level.

I also see that every class can unlock other cloths, bronze, silver and gold. But this is my question.

For example, I choose Cygnus class because I want Hydra cloth. After sometime I'll obtain it.. And than what? I'll become an Hydra who use glacial and freezing attacks? Or, other example, A Trialgolum who use Dragons? An Hercules.. With a chain?
Or the class powers change to fit with your new cloth? I ask because if they change I think is a huge thing, every class have a lot of iconic powers. And if not.. Well, I will not change the cloth, I don't want to be a Lyra Saint who use flame and fire attacks!

And a fast second question: Is there the Unicorn cloth? It's my favorite of the Bronze, but I didn't see it in the list.. If there isn't, do you think they will add other cloths in the next months/year?

Thanks and sorry for my bad english. I have red your guides but this point is still unknow for me.