Pokemon Poem: The Unown Riddle! :3

Below is a riddle I made, try to guess who they are!

I have wings, but cannot fly.

I may faint, but never die.

Water and Rock may dampen my pride,

But anything else must step aside!

For I have come back from my training with my brethren up high,

And I can beat you in the blink of an eye!

My trainer is good, one of the hardest to beat,

Our whole team is skilled; we can bring on the heat.

Once you have been crowned Champion of all,

Meet us on Mount Silver for one final brawl!

I have given you the clues, so you cannot deny…

Who is my trainer, and who am I?