okay a scripted fight is where, I give away what the monster can do, and you guys figure out how you want to defeat it. I mean its not really fun and there is no risk for losing, a lot of rpers tend to like that style. The challenge style is quite literally you guys vs me. I get a monster or 2 with different abilities and I choose what they do, you guys try to choose things to counter me.
So for example either we post like.
Monster A swings its mighty blade, in reaction ryle dodges and sends out a wind blast. (semi scripted because its all in the same post, basically scripted means the players have control of the monsters too)
or non scripted
Monster A swings its mighty blade attempting to strike down Ryle in a single blow.
Response post
Ryle just barely rolls out of the way of the monsters attack and sends out a small wind blast aimed to knock the monster down.
The first style is usually used in heavily story driven rp, where everyone just wants to stare at their characters actions. Where as the second style is based more for a game like rp, where you have to keep yourselves alive.
(sorry if this was long winded, I used to teach how to fight in rp, on some other sites, its hard for me to get out of the teaching habit XD)