I dont know what moveset to do for snorlax,there are some ideas: Belly drum snorlax:
Yawn ( sleep enemy) stockpile (increase def and sp.def)
belly drum (use BD then heal pot)
body slam (start hiting)
Offensive snorlax: (dont know which moves to grab)
EQ
elem. punches
Bullet seed
Crunch
Body slam
Since it is very slow pokemon and it cant learn trick room, i dont have any idea how to use him, any tips?