Dude masteron by itself? That sounds like a terrible idea. Masteron can cause balding and has some bad side effects. It will not be a very good strength/size gainer by itself and is used in my opinion for contest prep.
Sounds like you want to "cut" well if u use masteron you may lose a SMALL amount of fat, most of the water in your body will be gone but unless your fat levels are really low (5-10%) you will not see good results at all from mast. Sure some water will shed off, but if you have high fat you will still not look cut. Also the water will come back after you quit taking masteron.
Maybe spend more time researching about roids