Great for TCGs like Magic: The Gathering
The combination of pressure and card advantage makes this an appealing commander for faerie-typal or midrange
Gyarados, Blastoise ex, Articuno ex, and Palkia ex can all thrive with Mistys energy boost, allowing them to hit hard right when they enter the fray
Kaito, Cunning Infiltrator Three-mana planeswalkers are often important in Standard environments
Overall, this is a very cool experience for EDH players, but do not expect it to be nearly as powerful as its older counterpart
As far as strategy goes it is very important to move Darkrai from your hand to your bench when you need the have a possibility of the defending Pokemon not attacking, also I would definitely play Dark Slumber right away to make the defending Pokemon asleep and then use Dark Resolve especially if the defending Pokemon is asleep and it should be because of Dark Slumber