Repost:

How you even gonna try and call me second best?
I got the baddest one-upped by a factor of six.
If I'm on your side, you can bet I'm gonna please ya,
Blastin' em like a green-haired chick with amnesia.

***

It is not a character or a weapon.
Line 4 refers to Terra from FF6, but has nothing to do with her magic ability.