Was I wrong about Decidueye ex?

This Decidueye ex deck can deal 240 damage, discard an energy, and limit them to 4 cards each turn. But is that enough to be good? Follow me on Twitch for streams at 2pm PT / 5pm ET -   / trustyourpilot   Subscribe to my VODs channel so you can watch all the games not fun enough to make the video -    / @trustyourpilotplays   Intro - 0:00 Game 1 vs Lucario - 1:05 Game 2 vs Worst Stage 2 Grass ex - 15:37 Game 3 vs Jellidollar - 28:56 DECIDUEYE EX + ENHANCED HAMMER DECK LIST (Games 1 & 2): Pokémon: 10 2 Vivillon POR 9 2 Spewpa POR 8 3 Rowlet SFA 3 1 Celebi MEG 12 3 Dartrix POR 11 2 Scatterbug SSP 5 1 Fezandipiti ex SFA 38 1 Budew PRE 4 3 Decidueye ex POR 12 1 Relicanth TEF 84 Trainer: 15 3 Forest of Vitality MEG 117 4 Bug Catching Set TWM 143 1 Enhanced Hammer TWM 148 2 Dawn PFL 87 1 Max Rod PRE 116 1 Night Stretcher SFA 61 3 Poké Pad ASC 198 2 Air Balloon BLK 79 2 Handheld Fan TWM 150 2 Hilda WHT 84 2 Judge DRI 167 3 Buddy-Buddy Poffin TEF 144 4 Lillie's Determination MEG 119 3 Ultra Ball MEG 131 2 Boss's Orders MEG 114 Energy: 2 1 Growing {G} Energy POR 86 5 Basic {G} Energy MEE 1 DECIDUEYE EX + CRUSHING HAMMER DECK LIST (Game 3): Pokémon: 10 2 Vivillon POR 9 2 Spewpa POR 8 3 Rowlet SFA 3 1 Shaymin DRI 10 3 Dartrix POR 11 1 Fezandipiti ex SFA 38 1 Budew PRE 4 3 Decidueye ex POR 12 2 Scatterbug SSP 5 1 Celebi MEG 12 Trainer: 15 3 Poké Pad ASC 198 3 Buddy-Buddy Poffin TEF 144 4 Lillie's Determination MEG 119 1 Handheld Fan TWM 150 2 Air Balloon BLK 79 2 Boss's Orders MEG 114 3 Forest of Vitality MEG 117 4 Crushing Hammer POR 71 1 Night Stretcher SFA 61 2 Ultra Ball MEG 131 1 Max Rod PRE 116 2 Dawn PFL 87 4 Bug Catching Set TWM 143 2 Hilda WHT 84 2 Judge DRI 167 Energy: 1 5 Basic {G} Energy MEE 1 DECIDUEYE EX + SHAYMIN & PSYDUCK INSTEAD OF RABSCA: Pokémon: 10 2 Vivillon POR 9 3 Spewpa POR 8 3 Rowlet SFA 3 3 Dartrix POR 11 3 Scatterbug SSP 5 1 Fezandipiti ex ASC 142 1 Psyduck ASC 39 3 Decidueye ex POR 12 1 Shaymin DRI 10 1 Relicanth TEF 84 Trainer: 13 4 Forest of Vitality MEG 117 3 Bug Catching Set TWM 143 4 Dawn PFL 87 2 Iris's Fighting Spirit JTG 149 1 Prime Catcher TEF 157 1 Morty's Conviction TEF 155 4 Poké Pad ASC 198 2 Night Stretcher ASC 196 1 Hilda WHT 84 2 Buddy-Buddy Poffin TEF 144 4 Lillie's Determination MEG 119 1 Ultra Ball MEG 131 2 Boss's Orders MEG 114 Energy: 3 3 Growing {G} Energy POR 86 3 Basic {G} Energy MEE 1 2 Ignition Energy WHT 86 DECIDUEYE EX + DUDUNSPARCE DECK LIST: Pokémon: 12 2 Vivillon POR 9 1 Meowth ex POR 62 3 Rowlet SFA 3 1 Relicanth TEF 84 3 Dartrix POR 11 2 Dunsparce JTG 120 1 Fezandipiti ex ASC 142 2 Dudunsparce TEF 129 1 Budew ASC 16 2 Spewpa SSP 6 2 Decidueye ex POR 12 2 Scatterbug SSP 5 Trainer: 12 1 Air Balloon ASC 181 4 Poké Pad ASC 198 2 Night Stretcher ASC 196 4 Buddy-Buddy Poffin TEF 144 2 Lillie's Determination MEG 119 1 Lana's Aid TWM 155 2 Boss's Orders MEG 114 4 Forest of Vitality MEG 117 4 Ultra Ball MEG 131 1 Colress's Tenacity SFA 57 2 Dawn PFL 87 4 Hilda WHT 84 Energy: 4 2 Basic {G} Energy MEE 1 1 Enriching Energy SSP 191 2 Growing {G} Energy POR 86 2 Ignition Energy WHT 86