Should I give it away?
1. I'm involved in a fierce rivalry.
2. Not like a rivalry or two's going to make me sit still like some old coot, mind you. I still get around.
3. It's not entirely inaccurate to say I don't move around a lot, though.
4. Though you can't immediately tell from my appearance, I am actually rather old.
5. Funny story: I used to be in the employance of my rival's husband.
6. If you're into puns, then my apprentice and rival share a connection.
7. Some of this season's warriors were involved in a war between my apprentice and, well, basically the rest of the world.