The game of hockey is constantly evolving and there are a variety of different attributes that players can work on to improve their overall game. Some attributes that I think would be an interesting one to add for the SHL would be the following:

Garbage Collector: A lot of goals are scored in the dirty areas and in the front of net off of rebounds so adding a "garbage collector" attribute can help boost the offensive stat for power forwards who play in the front of the net.

Gretzky's Office: "Gretzky's Office" has been a hockey term ever since the days of the legendary Wayne Gretzky where Wayne would make plays from behind the opposing goalie's net and to this day a lot of plays are made from there as well. 

Aggressive Forechecker: Forechecking is something that all coaches want their players to do to pressure the opposing team's breakout from their defensive zone. A good forecheck can hinder the offensive start and can lead to turnovers for a scoring chance as well.

These are some of the attributes that I think would be an interesting add in the SHL.