A struggling team with gamebreaking stars visits an inconsistent team with a lot of team guys. It’s Game 21 for the New York Islanders, when we can officially the first quarter of the season is complete, and Game 20 for the visiting and likewise inconsistent Edmonton Oilers, who arrive sitting outside of the Western Conference playoff spots. The Oilers have not followed up last season’s breakout year with the next step expected of them. Evander Kane is out long term after that scary skate blade. Offseason goalie signing Jack Campbell took a nose-breaking puck to the face — on the…