It is very convenient how Gardevoir-GX and Gallade (a very anticipated card and a current popular deck) both evolve from the same line (Ralts). Gallade (BKT) is very useful for its Premonition ability, as well as its attack which can do big damage for a DCE. However, you could also choose to play Gardevoir-GX from your hand to unleash a devastating attack by piling on the energy.
The deck is built to fully survive the upcoming rotation, if the rumours are believed that BREAKthrough will stay for another year.
Pokémon: 20
3x Gardevoir-GX
3x Gallade
3x Kirlia
4x Ralts
2x Octillery
2x Remoraid
2x Tapu Lele-GX
1x Sudowoodo
Trainers: 25
4x Rescue Stretcher
1x Super Rod
3x Rare Candy
3x Choice Band
1x Field Blower
4x Ultra Ball
1x Special Charge
4x Professor Sycamore
2x N
2x Guzma
Energy: 15
11x Fairy Energy
4x DCE
The strategy is to start off evolving your Ralts into Gallades. This keeps the pressure on early game and also ensures you get nice draws in the first half of the game. Once your Gallades have fallen, shuffle them back in with Rescue Stretcher and Super Rod to ensure and easy access to Gardevoir-GX.
The deck is built to fully survive the upcoming rotation, if the rumours are believed that BREAKthrough will stay for another year.
Pokémon: 20
3x Gardevoir-GX
3x Gallade
3x Kirlia
4x Ralts
2x Octillery
2x Remoraid
2x Tapu Lele-GX
1x Sudowoodo
Trainers: 25
4x Rescue Stretcher
1x Super Rod
3x Rare Candy
3x Choice Band
1x Field Blower
4x Ultra Ball
1x Special Charge
4x Professor Sycamore
2x N
2x Guzma
Energy: 15
11x Fairy Energy
4x DCE
The strategy is to start off evolving your Ralts into Gallades. This keeps the pressure on early game and also ensures you get nice draws in the first half of the game. Once your Gallades have fallen, shuffle them back in with Rescue Stretcher and Super Rod to ensure and easy access to Gardevoir-GX.