Cutting up or getting bigger is not about which steroid you are taking but about eating more or eating. A steroid like dbol will help to grow more muscle if you eat right but you could grow on var too. Same is mostly true for cutting as well. Its just that dbol is more ideal for bulking and var is more ideal for cutting. The fat loss or muscle gains comes from food and cardio though. I would suggest you pick a direction and work toward that goal. 

If you want to use gear, your best bet is to start out with test and adex. It can equally provide you with help reaching either goal depending on how you control estrogen and diet. Drugs like var, dbol, win are all add on steroids, meant to be ran for shorter times within a longer cycle, which would be based around test. For example, a cutting cycle would like like this :

1-10

Test e 250-500mg EW

adex .5mg EOD

6-10

Winstrol or var

50mg ED

Of course you will want to do PCT. For this cycle PCT starts 2 wks after last shot