
I have and have seen a lot of groups create their own roll systems that suit their needs.
It also depends on how many people are going to be using it because roll systems can take a lot of time on their own and then you always end up with that one person who won't pre-write their posts and makes everyone wait 10 minutes while they emote.
So you don't want to weigh it down with too many details.
I found the greatest success was just making attacks deal X damage to boss and they devise how the attack would be emoted/performed in ways that make sense for their character so everyone is happy. Add some kind of "Limit Break" baton that can get passed around and you're generally good.
Devising your own personal system to suit your needs at the time is what I've found the most success with. As far as one on one sparring I just let people figure that out between each other. If two people can't OOCly figure out how it's "fair" enough for their characters to fisticuff ICly then they probably just...shouldn't.
It also depends on how many people are going to be using it because roll systems can take a lot of time on their own and then you always end up with that one person who won't pre-write their posts and makes everyone wait 10 minutes while they emote.

I found the greatest success was just making attacks deal X damage to boss and they devise how the attack would be emoted/performed in ways that make sense for their character so everyone is happy. Add some kind of "Limit Break" baton that can get passed around and you're generally good.
Devising your own personal system to suit your needs at the time is what I've found the most success with. As far as one on one sparring I just let people figure that out between each other. If two people can't OOCly figure out how it's "fair" enough for their characters to fisticuff ICly then they probably just...shouldn't.