@Savato
It depends on the injury, but when he got beat down by Superman, it took a week or so. When he got pretty much vaporized by Imperiax, it took I believe a hundred years. But then the plot rapid-regened him. I believe he also got completely atomized once, and it took him a couple billion years to recover from that. But he got better, eventually.
Also, people, stop arguing pointlessly. Light is nigh-indestructible. But we have a char that's literally completely and utterly immortal, which is arguably even more overpowered. Satsuki can't even really be HURT, besides through an incredibly contrived weakness.
Yes, Toon powers are bullshit OP. But this is a roleplay filled with Bullshit OP characters. So she fits right in.
Oh yeah. Did you see Deathbattle @Mtntopview? G4 Rainbow Dash vs G1 Starscream was kinda funny.