Elizabeth
"Feh. You're underestimating me, squirt." Elizabeth shot back. "I had no intention to use such a cheap trick in our fight. There would be absolutely no point to the endeavor."
She opened up her palm, and an impossibly dense orb of magical energy formed in it, before she crushed it in her hand once more.
"Now-" She snapped, and the two relocated deep underground, to an immense sparring arena with no seating. "-Let us begin."
--Twenty Minutes Later--
Elizabeth stood triumphant in front of her new disciple, quite excited by the showings of raw potential that she'd gleaned from their magical duel. This fire elemental was quite the diamond in the rough, and she didn't begrudge the elemental races using a more mundane form of magic.
She flipped one of her twin tails as a tail slithered out from just above her butt. "You have quite a bit of hidden potential, Lily. Try focusing on shapeshifting. See if you can grow yourself a tail the way I just did."
It swung behind her, swaying gently. "Imagine what you would want one to look like, if you have a clear enough mental image, it will materialize."