Start with getting a poffin to get at least one 1 Blipbug and 1 Ralts onto the bench. Use Ultra Balls to feed your own discard pile with Energy and get a Deoxys ready with Gardevoir EX's help.
Use the hammer to get a potential early lead on removing opponents energy for Orbeetle's ability which it uses to feeds your opponents active pokemon with their energies.
Relicanth's Memory Dive allows any surviving Deoxys VSTAR to use the regular Psychic attack from Basic Deoxys V afterwards.
If things go bad Ursaluna can help the late game difficult fights