Unlimited points 
     You  can  win  points  to  unlock cards and items in the shops by
completing the tutorials over and over again in story mode. During any
mission  that  has a tutorial, complete the puzzles after the tutorial
then leave the mission without winning. When you go back to story mode
and  start  again  you will be prompted to do the tutorial and puzzles
again.  Repeat  as  long  as  you  can stand it. Once you complete the
mission  you  can't  repeat  the  puzzles  for  points  again so don't
continue story mode until you are ready to stop banking points.