Aside from knowing how to play? Not really. That sounds a bit trite but it took me a bit to clue up last year (granted I had distractions...)
You play your opponent over the course of a week. You *will* check your roster daily and swap people in and out who are playing that night. Sometimes you might not have the right bench players to have a full roster every night, gonna happen. Who is winning your match will change often as one guy has more players going on a given night than the other plus performance, etc.
You play across ten statistical categories. For ten points. Let's roll through them:
Goals
Assists
+/-
Those are pretty self explanatory. Note the brain warping fantasy enigma that is a certain Washington Capitals star player on offense who can lead the league in goals but also quite possibly lead the league in +/- (mainly the minus).
Your motley collection of guys over the course of a week score more than the other guys motley collection then you have "won" that point out of the ten categories. Same for assists. Same for +/- (being the plusses you want of course)
Penalty Minutes
Powerplay Points
Shots on Goal
Self explanatory. Those six categories are what your off and def guys handle. Your goalies do the rest:
Wins
Goals Against Ave
Save %
Shut Outs.
Self explanatory. Your goalies, collectively, have to rock at least three games during a week otherwise you forfeit all of your goallie derived points. That means some dude with a killer shutout can't be your only goalie play during the week. Not fair, etc.
So you play over a week and say you beat the other guy in goals and wins. The other guy has you in assists, +/-, save % and shut outs. You tie all the rest.
You get two points, other dude gets four points, they win the match.
You: 2-4-4
Other Guy: 4-2-4
Rinse, repeat for season.
2 centers, 2 right wings, 2 left wings, 4 defense, 2 goalies plus 4 bench players of whoever/whatever.
Note that some magical players are listed as center/right, or center/left, or all three. Yes, they can fit in all the slots.
Check this: http://hockey.fantasysports.yahoo.com/hockey/65733/lastseason
That's our rosters from last year when the year ended. You can see who we drafted (provided we didn't drop them during the season) draft pos. and rankings at stat and end of season.
With just 6 teams it was rather enjoyable knowing we left a lot out there to pick and switch with during the year.
Lastly, as the match plays out the x-x-x score will vary wildly. You can be up 9-0-1 after a Monday night but that probably just means the other guy had no one playing that night. The next night it could be 3-6-1, and then 5-2-3, and so on.