Sadeyo

Atlasia of course. Vamp Sion can't keep her composure well enough to make such a cold and beautiful stare. That and the fact that the pic is recolored to resemble Sion's 12th color palette (the one you always see me use) is a good give away too. Also I misunderstood the question you asked earlier, I use Sion Eltnam Atlasia in both MBAC and MBAA. I can use Vamp Sion but I just don't like her quite as much. I prefer regular Sion's calm, collected composure and overwhelming genius over Vamp Sion's consistent panic, painful screaming, and insanity.