Aradoom
Well I won a battle road with arcanine/houndoom I'll post the list now since my battle roads are over.
Pokemon: 16
3 Arcanine ex
3 Growlithe
3 Houndoom
3 Houndour
1 Mew d (copy)
1 luvdisc (cg)
2 Holon's Magneton
Trainers: 29
4 marys Request
4 Prof. Elms TM
1 Celio's Network
2 High Pressure System
2 Cursed Stone
2 Scott
3 Castaway
2 Buffer Piece
2 Mysterious Shard
2 Copy Cat
3 Great Ball
2 Master Ball
Energy: 15
11 Fire
4 React
The Mew was a tech vs Infernape so I could copy Fire Blitz, but it ended up not being worth it, because I lost games recently starting with it. I should have added another luvdisc instead. Other than that it performs pretty well. High pressure system came in usefull alot of the time, so I could free retreat everyone except arcanine. Mysterious shard went well vs ex decks, they couldent windstorm it off when I had less pokemon. Bufferpiece pretty much gave arcanine at least 150hp after he healed 1x.
Good luck if you use this at Nats. Sad to see Arcanine go. I'm starting a new deck for the next format now. Stage 1's seem to be fading out now.