Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
I always go BL first but some go SS. But i think BL is more important cus u can get 1st blood easier and lane longer.
In a fight i do MS first to decrease there hits and slow them if they try to run immediatly, after i attack maybe throw in a SS let my crits do most of my damage.Then when they run ill SS them and or exhaust, then by now MS should be ready and i slow em down SS again and they should either be dead or close. =)
Make sure to always last hit minions for it gives u stacks on BL and u can heal from it. Also when u want to gank some one u want BL stacked or at least till ur higher level. As for when ur higher u can stack it just from attacking them.