1. Lord Itachi and Madara Uchiha (Do I need to explain?)
2. Shikamaru, Naruto, and Sasuke (Again, do I need to explain?)
3. Kakashi (Gathered alot of intel from Lord Itachi, hell, his intelligence is what kept him alive.)
4. Kabuto (Could just use his Cards fml)
5. Tobirama and Minato...