Tende altum, volare altius
The angels are going to have a great time with this character XD Interesting idea.In terms of pacing, I do have uni and work most days, but I can typically post a decent amount every day except for Mondays (before 9pm EST), especially weekends since I go home for most of them and won't have anything to do. Of course, I'll fit whatever pace the RP ends up progressing at.
I'm kind of figuring this out as I type (sorry that it's lengthy and very stream-of-consciousness), but for my character, I think I'll go with some sort of wraith. While not necessarily being malevolent at heart, they will be a soulless ghost-like entity who can only regularly feel unimaginably intense emotions like hatred and despair. They also typically latch onto one human host to take a physical form, and will move on to the next host once it dies. In order to make them more playable in an RP, they will be extremely good at mimicking human emotions while still being entirely motivated by their turbulent nature. In folklore, they are described as being able to drain the life out of a person with a single touch, but that's a little too OP so I'm thinking of having their powers more along the lines of a dementor, where they flood their victim with a barrage of the worst mental circumstances possible. Their other main power is only sometimes unleashed when they are seriously provoked without being defeated, at which point they release their anger in the form of an energy wave that steals the will to live from any susceptible creature in its vicinity.
In terms of personality, my character will be very calm, calculated, and cutting. They measure every emotion they display to others and have a completely dry humor that they can't find funny themselves. It's very difficult to get them riled up past this state, but once they feel, they feel more intensely than any human can imagine. More often that not, this isn't a happy state for them, but very rarely, the emotion that emerges is not one of darkness. I haven't decided on a host gender yet!