At this stage, Naruto's arsenal is limited, but key techniques have already been mastered. Shadow clones form the basis of his tactics: he creates them by the dozens, using them for reconnaissance, distraction, and mass attacks. The Rasengan was learned during preparation for the Chunin Exam, but the technique requires the participation of a shadow clone to form and stabilize, making it predictable and energy-consuming. Summoning frogs from Mount Myōboku is available, but unstable—most often Gamakichi appears, while Gamabunta is summoned only in critical situations and only briefly. Walking on water has been mastered during the exam. There is no elemental transformation (wind), nor any other advanced ninjutsu.