Dialga EX

Dialga EX sits in a painful position at the moment. It can generate Metal energy every turn for a mere 2 energy cost that can be attached to ANY Pokemon, and deals decent damage if you invest a full 4 energy into it, but as of right now it really doesn't have any cards to support that genuinely stand out. As of right now, the best Metal card that it can generally support is probably Melmetal, but that's not a great option in today's meta. For the time being, Dialga is just sitting quietly, waiting for a metal superstar to show up and work alongside it... time will tell.