Board Thread:Theories and Speculation/@comment-26379028-20150531155829/@comment-5936871-20150608230657

First Raikage: Due to his appearance, and the fact that Kumogakure promotes the use of kenjutsu and nintaijutsu, and the First Raikage founded it. Makes me believe that he was obviously a master of lightning release and was highly skilled in kenjutsu. He looks too short and thin to be a nintaijutsu powerhouse and doesn't look like he would have any type of powerful superhuman body. So I believe he was fast as well and utilized it in conjunction with his kenjutsu skills. I think he created many of the "Cloud Style" kenjutsu techniques too and probably had his own unique much stronger ones than the standard ones.

Second Raikage: Due to his appearance, and the fact that Kumogakure promotes Kenjutsu and Nintaijutsu. Makes me believe that he was obviously very skilled in lightning release and nintaijutsu. I think he might have created the LRCM and Black Lightning, and was skilled in fuinjutsu as well since he has a bunch of weird looking medallions on his attire. Maybe he made the Iron Armor Seal or was a skilled user of it? Idk.

First Mizukage: Due to his appearance, I believe he was a master of kenjutsu and founded the Seven Ninja Mist Swordsmen, and mastered all of their swords. On top of being a master of water release too.

Third Mizukage: Very hard to tell, but I believe he might have used some very dark hiden jutsu or kinjutsu, and was very skilled in genjutsu and water release too.

First Tsuchikage: A highly skilled wielder of bugs from his clan, matser of earth release, and maybe lava release as well.

First Kazekage: A master of wind release, and could possibly use magnet release as well.

Second Kazekage: A highly skilled wielder of puppets, skilled user of wind release, and maybe some fuinjutsu and juinjutsu too due to that strange tattoo on his body and research of Jinchuriki.