[quote=@Inertia]
I'm wondering, what's your soft limit on the speed of Sou's skill- 'Propel'?
What would be reasonable?
[/quote]

I think being able to propel himself at about 30 kilometers per hour (just a little under 20 miles an hour) before he hits the ground and adds to it with his running speed, and then gradually slowing down over distance, would be fine. If he was constantly using his explosions for propulsion without touching the ground, he might be able to build up to twice that speed, but it would of course put a lot of strain on him and he'd risk damaging his limbs from both the explosion and from landing at such a speed.

[quote=@Great Sogeking]
Hrmm. There was a character I wanted to run here, but for the sake of avoiding another combo platter Quirk and a little overlap I'm kinda on the fence about signing her up.

Her Quirk is just petrifying her arms into flint and steel with all the pluses and drawbacks of that. It's kinda similar to Writes, but not overtly, I think?
[/quote]

Would it just be one arm per transformation? Would she be able to make blades, or would it just be a body-hardening quirk? As for other applications, what was your primary use of it going to be? Like you said, it's a bit similar to Writes, but it's also kind of similar to Intertia's character, though granted their actual power is adjusting oxygen density and the sparks they make are from another piece of equipment.