This means that every pack you open is valuable
Those include: Sidequest: Raise a Chocobo is the most realistic incentive available, as the others are too rare
After all, you cant win those Gym Badges sitting at home
Cards like Alandra, Sky Dreamer and Minn, Wily Illusionist for second card drawn each turn (I know this is a tag already)
So, if you have a Druddigon in your Active (who typically doesnt need any Energy to fulfill its role), Rough Skin does 20 DMG and as you attach Energy to Darkrai in your Bench, theres another 20 DGMF, totally the net damage you do to your opponents Active Spot Pokmon to a staggering 40 DMG
Crunching numbers is their specialty