Just figure out a way to be honest in your battles.
*No killing or dismembering without consent. Consenting killed characters cannot play thier characters in this dream afterwards.
*Magic will be limited. no area affect magic, no area affect magics, no mind control magics. Magics should have one post of prep and can be disrupted.
*When available, battles will be observed by a Fight Master to ensure there is no Godmodding.