Guess That Warrior Cat!

Riddle #86

  
    @paw_of_the_earth guessed the last cat correctly! Some cat won... Here's the next riddle:

I was born in ThunderClan, along with my sister with a special power,
I was her shadow for many moons, until a cat took me to a place to make me a "better warrior"
I was there for a long time until the truth. I then served as a spy,
In the end, I helped my Clan in the final battle and became the true warrior I wanted to be.

Go check out my new book- WarriojiEmoji! Go read it, vote, and comment! Make it as successful as this game!
~Night