Question: what episode does naruto train for sage mode?
Answer: In ep 156, Naruto is finally successful in gathering enough energy to master Sage Mode. He is then taught senjutsu-enhanced taijutsu called Frog Kumite and he spars with Fukasaku in an effort to increase his power and range in physical attacks. In ep 157 Naruto wraps up his training in Mount Myoboku.