Yep, need a lot more info to give "good" and more importantly, relevant advice.
If your only purpose is to hit a target weight, I could argue that any steroid is going to add mass - they are not "fat burners' - frequently people running non-aromatizing compounds (meaning they don't promote estrogen via the process of aromatization (androgen converting to estrogen) and will subsequently promote water retention ) will lean out (promote lean muscle mass preferentially over bodyfat) but also can tend to gain weight because muscle mass weighs more than fat, but takes up much less space.
If you want to preserve lean muscle mass while dropping bodyfat, a cycle can help, however it is the diet, cardio/ training & good quality sleep / recovery that is promoting fat loss.
Can you clarify what you're competing in, how much time you have, how much weight you have to drop, what your current diet & training is now, and is all of what you are doing producing results now?
Basically if you are on a strict timeline, unless you're well beyond 8 weeks out, you're more than likely to just **** up everything if you start experimenting w/ AAS and you have no idea what you're doing.