What should I put in my mega Darkrai ex

Pokeguy232

So I went to a pre- release and pulled mega Darkrai ex and won 3-0 so I made a deck with him and I was wondering what are some good cards I should put in it I am currently running

2 mega Darkrai ex

1 lille's Clefairy ex

2 Munkisori

2 toxtrisety

2 toxel

1 zarude

1 Volbeat

4 seviper

1 prim cacher

2 energy search

2 tr petrel

1 energy recycler

2 brocks scouting

2 Hilda

2 pokepad

3 ultra ball

3 Gwynn

1 air boolon

10 dark energies

3 prism energy

2 shadowy energy

00Miner00

Don't really know much about Darkrai but made a list using yours as a base let me know what you think

Pokémon: 15
2 Toxel PFL 67
2 Toxtricity PFL 68
2 Seviper PFL 62
2 Mega Darkrai ex M5 46
2 Munkidori ASC 99
2 Chi-Yu M5 57
1 Zarude M5 54
1 Lillie's Clefairy ex ASC 76
1 Budew ASC 16

Trainer: 30
3 Gwynn M5 78
2 Hilda WHT 84
2 Team Rocket's Petrel ASC 207
2 Brock's Scouting JTG 146
2 Wally's Compassion MEG 132
4 Poké Pad POR 81
3 Ultra Ball ASC 213
2 Energy Search POR 72
2 Mega Signal ASC 193
2 Dark Bell M5 70
2 Buddy-Buddy Poffin ASC 184
1 Prime Catcher PRE 119
1 Air Balloon ASC 181
2 Battle Cage PFL 85

Energy: 15
10 Darkness Energy MEE 7
3 Shadowy Darkness Energy M5 81
2 Psychic Energy MEE 5

Pokeguy232

Thanks I will think about it