Here is my Delphox Break deck list (with thanks to
@pikachuuuu101 for some help with the list). If you don't know already, Delphox from FCO deals 20 damage times the amount of energy attached to
all (including your opponents) Pokémon in play. Delphox Break increases Delphox's HP to 180 and has the ability Flare Witch that allows you to search your deck once during your turn for a [F] energy attach it to one of your Pokémon. Combined with other ways to search for other cards and energy acceleration such as Talonflame, Blacksmith, Delphox XY (has an ability that allows you to once during your turn to draw cards until you have 6 cards in hand), etc., I think this deck has some competitive potential.
(prices are per individual card, not the combined duplicates' price, provided by TCGPlayer.com)
Pokémon*18
Fenniken*4 FCO (I prefer the 60 HP version)
$0.10
Braxien*2 FCO
$0.15
Delphox*3 FCO
$0.50
Delphox*1 XY
$0.90
Delphox Break*3 FCO
$0.95
Talonflame*4 STS
$1.30
Alolan Vulpix*1 GRI
$0.25
Trainer*29
Professor Sycamore*3 BKP
$1.35
N*2 DEX
$4.10
Lysandre*1 AOR
$0.35
Blacksmith*2 FLF
$0.85
Teammates*1 PRC
$0.15
Ultra Ball*4 FLF
$0.25
VS Seeker*4 PHF
$1.30
Rare Candy*3 PRC
$0.40
Super Rod*2 BKT
$0.40
Field Blower*2 GRI
$0.25
Choice Band*2 GRI
$0.80
Float Stone*1 BKT
$2.75
Scorched Earth*2 PRC
$0.20
Energy*13
Fire Energy*9 SUM
$0.10
Double Colorless Energy*4 SHL
$0.50
Total # of Cards: 60
Total Price:
$42.20
Some personal cards are the Alolan Vulpix (in case you don't start with Talonflame), Teammates (helps when you need a card to use that turn instead of after Talonflame's Aero Blitz attack), and Super Rod (helps shuffle Energy for Flare Witch and Pokémon to set up again).
Anyways, I hope this helps, thanks!