Re: Silent's Discussion Posts
On the Abecedary Legendaries
As I commented to him, I think he is pretty fit to create something for Xerneas's personality, mostly because he has shown experience in developing the personalities of characters marked by some of the same traits Xerneas has (being unsealed from long slumber, being haunted or experimented upon, being a source of life nurture themselves, that kind of stuff). That said, I also think he can do Yveltal, I just think he can do Xerneas better.
On the proposed personalities for the two mons, I think they are a bit cliché-y, but to their credit they kinda fit the intended clichés well. It only makes sense that Yveltal likes making things die or at least checking that they die the correct way, or something, as that's its purpose in nature. I'd expect Mr. Y to be less adolescent-y, less Unabomber-y, and more neurosurgeon-y, more bomb-technician-y, as he represents a necessary and controlled process (also death is not to be feared, etc).
Of course, the whole "if I die things around die for me :c" part has an effect so I'd also expect Yveltal to have a somewhat rebellious personality. I'd expect him/her to be very reclusive and antagonistic when feeling ill for example, and is not the kind of mon I imagine keeping minions around.
Re genders, I'm leaning towards both female, or perhaps towards Xerneas being male. But I pretty much see Yveltal as "female-esque". There's something strangely motherly on the interpretation of death that Yveltal seems to be based off that does not seem to fit Xerneas, at least to me. It's probably a sort of "return to the cradle" thing.
One thing that I'd very much like to be considered is that, these two Legendaries being based around the concepts that they are (less life and death and more giving life and taking life, as least as I can see, someone with actual experience on X/Y can correct me if I'm wrong) I strongly expect them to have markedly non-human personalities and mindsets. Our Legendaries are sometimes too human, it would be nice to see them as actual mons, or things beyond them, with corresponding interpretations and scales of values.
For example, one thing that I've been thinking about doing if I run Yveltal at some point is to have her see some human customs about death and the focus on "forcing" life when it comes to healthcare (if the subject ever comes up) as highly hypocrytical, weirdly misaimed, or both. A Million Is A Statistic and whatever trope exists for the possible name It's Not Alive If I Can't See It are two possible venues of conversation I could see coming up a lot. About Xerneas, given that he is suppossedly an enforced source of life, I could see him/her being somewhat adverse to protocol and probably seeing mons around him, in particular the long-lived ones, as too eager to justify themselves, whereas he just more-or-less lets things flow. He would also probably be amused or conflicted at the human culture's approaches to socially preserve evidences of life - be it art, statues, or naming streets after historical figugres.
All in all I can say I support Umbra's proposal for Xerneas and, more than that, Yveltal, so long as there is room to develop the more monal side of them.