This'll be a change - instead of a question about AAS, how about training? If you could only pick one crucial exercise for each body part, what would it be?
Chest -
Back -
Legs - (Squats, you don't need to answer this one )
Calves -
Shoulders -
Core/Abs -
Biceps -
Triceps -
Forearms -
I'm a big believer in compound exercises to start then isolation exercises to finish so my standard answer would be big compound movements however many guys are dealing with injuries and are training around those injuries so I would like to answer with 2 options. The second answer is for guys that may be having problems with injuries like lower back or rotator cuff injuries.
Chest - Incline BB Bench, Flat DB Bench
Back - Bent over BB Rows, Cable Pull downs to chest
Legs - Squats, Hack squats
Calves - Standing calf raises, Seated calf raises
Shoulders - Military DB presses, Machine Presses
Core/Abs - Crunches, Leg raises
Biceps - Standing BB curls, Preacher curls
Triceps - EZ Bar Triceps Extension, Cable push downs
Forearms - Standing Hammer Curls, Seated Hammer Curls