Definitely a Lannister! I'd be Twyin's smart daughter. I'd also poison Joff and frame Cersei for it. With them out of the way, Tyrion and I would have influenced Tommen to our liking. As for why a Lannister? I like that they're a little bit bad. Beats being a yawnfest like Dany.
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Being a Martell wouldn't be bad either. I quite like Grandma!
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