So, the core thing with this is that that's not how you do alliances! True friendship is, genuinely, a much better plan for having good and strong alliances; loyalty and camaraderie are actual things which will help. Sure, you lose out on the option to cheat and betray, but what I'm saying, is that we don't want those things anyway; any time such a decision will be made, it will be in direst need and with much hemming and hawing anyway, so leaning away from doing that is wise. Get power from the things we *know* we will do, and not from things we only *might* do.
Yep. Black is the secondary mana, so this assessment might be more or less accurate, but the description gives me the feeling that it's pretty on-the-mark: if Black forges an alliance, it won't be based on friendship. She'll strive to make sure she has some kind of power over the others, whether it's the direct power of actually being stronger or the indirect power of manipulation, coercion, and blackmail. Nah; White clearly has plenty of social issues of her own, but the naked ambition of Black is far more of a liability than a benefit.
(In another context I might have voted Black for the potential redemption arc since I'm a sucker for ambitious assholes becoming more tolerably assholish through the power of friendship, but redemption arcs aren't a good idea when you draw your power from being a bitch and because of that the world will die if you aren't bitchy enough. I think that's how it works, anyway.
)
There is a massive amount of power in good PR and loyalty. If we look and act like a hero, we will be treated like one.
Black explicitly comes across as insulting and cruel, and doesn't yet have a handle on that. Magical girl culture almost certainly lives off of gossip (rather than the deft work of PR specialists), so personal impressions are crucial to good PR. If I thought Black could pull off
Villain Anti-Hero with Good Publicity, I might see it as a more valid option (in terms of alliance-building and trust-gaining), but she's clearly not there yet and she probably won't have the time to get there.
EDIT: also her powers very clearly look bad and evil there's that too
Friendship and camaraderie might be easier for alliances, but backstabbing and power plays are more interesting. Especially if it's done well and with purpose, as opposed to just being petty and evil.
Backstabbing and power plays can be interesting, but only should be done when you don't have compatible goals or think the other party is surely acting in bad faith (like in international politics
). In this context, intrigue is wasted effort on obtaining personal power, which at best is effort not being put toward the higher cause of
stopping the apocalypse and at worst actively decreases the total power we could put toward that goal (by disempowering others more than we empower ourselves). Besides, White is explicitly capable of backstabbing and power plays if it's in the interests of the Greater Good (and yes, that's exactly as questionable as it sounds).