Psychic Trio

Great at one shotting Ex Cards with Mesprit.

Use Azelf and Cyrus to take out who you want.

Get the trio quickly using Oak, Balls, Slabs and Comms.

Ideally Uxie out first to generate energy on benched Mesprit.

Mew is good if you need to tank some damage, and in some cases its worth building up genome hacking.

Use X Speeds as needed to swap out mon. Works well with Dawn for a surprise attack with Mesprit.

Keep your copies of the trio in you hand, so opponent thinks their safe from your Mesprit when they K.O one of your trio.