Ok, just looking at this card on the main forums makes me think about it, since it's one of my favorite Pokemon in the VGC and it evolves from Eevee. Made this list in a minute, so I know I have left some things that I might need out.
4 Jolteon Dark Rush
4 Eevee UD (call for family)
1 Espeon Prime UD
3-3 Eelectrik NV
2 Cleffa
2 Crygonal NV (Ice Shard)
2 Thundurus EP (I think)
3 Pokemon Collector
4 Sage's Training
3 Professor Oak's New Theory
2 Engineer's Adjustments
4 Dual Ball
3 Super Rod
3 Pokemon Communication
3 Rocky Helmet
2 PlusPower
8 Electric
2 Water
Ok, so the main strategy of this deck is to swarm with Jolteon by using his first attack for one energy to discard one and do 60 damage, then Dynamotor to a benched Jolteon and retreat and keep hitting for 60. Crygonal is for Donphan, which can cause this deck problems. Eel to re-use the Electric energy discarded with Jolteon. Espeon Prime for anti Gothitelle. Rocky Helmet to rack up the damage. Super Rod to have a consistent getting Pokemon out of the discard.
Jolteon – Lightning – HP90
Stage 1 – Evolves from Eevee
[C] Elec-Gun: 20 damage. You may choose 1 Lightning Energy attached to this Pokemon and discard it. If you do, this attack does an additional 40 damage.
[L][C][C] Pin Missile: Flip 4 coins, this attack does 40 damage times the number of heads.
Weakness: Fighting (x2)
Resistance: none
Retreat: 0
4 Jolteon Dark Rush
4 Eevee UD (call for family)
1 Espeon Prime UD
3-3 Eelectrik NV
2 Cleffa
2 Crygonal NV (Ice Shard)
2 Thundurus EP (I think)
3 Pokemon Collector
4 Sage's Training
3 Professor Oak's New Theory
2 Engineer's Adjustments
4 Dual Ball
3 Super Rod
3 Pokemon Communication
3 Rocky Helmet
2 PlusPower
8 Electric
2 Water
Ok, so the main strategy of this deck is to swarm with Jolteon by using his first attack for one energy to discard one and do 60 damage, then Dynamotor to a benched Jolteon and retreat and keep hitting for 60. Crygonal is for Donphan, which can cause this deck problems. Eel to re-use the Electric energy discarded with Jolteon. Espeon Prime for anti Gothitelle. Rocky Helmet to rack up the damage. Super Rod to have a consistent getting Pokemon out of the discard.
Jolteon – Lightning – HP90
Stage 1 – Evolves from Eevee
[C] Elec-Gun: 20 damage. You may choose 1 Lightning Energy attached to this Pokemon and discard it. If you do, this attack does an additional 40 damage.
[L][C][C] Pin Missile: Flip 4 coins, this attack does 40 damage times the number of heads.
Weakness: Fighting (x2)
Resistance: none
Retreat: 0