been playing LoL since end of last year and it really is a great game considering its free. with rotating free heroes every month and points awarded for you progress that you can then use to unlock more heroes, its rather good! add to that the ease with which you can shop for items (they have suggested items for every hero) and any new player can jump in and make have an effect on how the matches turn out...
I think Riot is doing a great job until DOTA 2 comes out from Valve![]()
Yes any new player can affect the game as to how many times they feed the enemy