User blog comment:Silver-Haired Seireitou/Requests for Sage Mode Variations/@comment-4119660-20120422181009

Advantages

 * User's physical attributes and senses increase
 * User's Ninjutsu is increased but not as much as the user's taijutsu

Disatvantages

 * User's genjutsu ability is decreased
 * If the user's natural energy intake overloads their chakra amount, they run the risk of turning into a werewolf-type form and losing all sense of sanity

I will use it for Kankoku Jōdan.
I think i should be allowed to make it because I love Sage Mode and only have only one other character who has it.