My take on a mega gardevoir ex deck im pretty new still to deck building but how is it

Pokémon: 15

2 Combee PAL 8

2 Munkidori TWM 95

2 Gardevoir ex PAF 233

1 Mew ex PAF 232

1 Latias ex SSP 76

2 Kirlia MEG 59

1 Latias ex SVALT 221

1 Fezandipiti ex SFA 38

1 Lillie's Clefairy ex JTG 184

1 Mega Gardevoir ex MEG 159

2 Frillish WHT 44

1 Lillie's Clefairy ex JTG 56

1 Mega Gardevoir ex MEG 187

4 Ralts MEG 58

2 Vespiquen ex OBF 212

Trainer: 13

2 Earthen Vessel PAR 163

1 Area Zero Underdepths SCR 131

2 Mystery Garden MEG 172

1 Rare Candy MEG 175

2 Buddy-Buddy Poffin MEG 167

1 Area Zero Underdepths PRE 94

1 Sparkling Crystal SCR 142

2 Nest Ball SVI 181

1 Lillie's Determination MEG 184

1 Bravery Charm PAL 173

2 Arven SVI 166

1 Mega Signal MEG 121 PH

1 Rare Candy MEG 125

Energy: 3

13 Basic {P} Energy MEE 5

1 Basic {D} Energy MEE 7

4 Basic {G} Energy MEE 1

Total Cards: 60