There aren't any clear answers for dealing with the Pokémon TCG Pocket Cresselia ex Drop event, thanks in part to the limited capabilities of Darkness-type cards, but we do have

The Pokémon Company International says it’s “actively investigating” ways to improve the feature after players threatened to cancel their subscriptions.

Grassroots Pokémon TCG Pocket tournaments are sweeping the online scene, but competitors are calling for official support and recognition.