HUT Event suggestions

Hi all had an idea for an event so here it goes just a base idea though could use some expanding 

idea for a hut cards set 
ROOKIES TO SUPERSTARS
Have the cards start out as their rookie version and gain experience through  achievements too upgrade to their Super star version starting from Rookie to Superstar  have the cards gain xp based on how long the card is used in the line up the longer the card stays in the line up the better it becomes
Cards can only be leveled up by playing them.
Set milestones for the players to achieve to unlock the  levels of each card.

maybe do Ovechkin from rookie to record setter (it's happening)
Matthew Tkachuk  from Rookie too Champ
Etc.
kind of like in the be a pro setting when you start out.