If you are referring to Kimimaro with his Dead Bone Pulse Kekkei Genkai, I personally will only approve it in balanced conditions. Then again, I am confident you will be able to balance it out just fine ;-)

Also, a note for all to see - I am attending an AnimeShow that is held every year in our Capital + a Midterm from Calculus is approaching on Monday. I apologize for everybody delayed by this absence.