You could make it work and I know some people that had great results on like 200-500mg of deca only.. but not for me..
So test in this scenario.. but in a magic world w/ no test and had to pick 1 compound to bulk.. it would come down to tren / dbol..
tren works wonders for me at even small dosages.. and i can just keep the sides under control. dbol feels great..almost test like and you just have to learn how to control the estrogen.