My version of this deck (why is it called ChainChomp, wasn't it FluffyChomp?) is this:
Pokemon: 20
4-3-4 Garchomp DRX (Sand Attack Gible, Dragon Call Gabite and Mach Cut Garchomp)
3-3 Altaria DRX
2 Emolga
1 Terrakion NVI
Trainer: 30
3 Juniper
4 N
2 Skyla
2 Cheren
2 Bianca
2 Colress
1 Dowsing Machine
4 Level Ball
3 Switch
2 Escape Rope
3 Rare Candy
2 Super Rod
Energy: 10
6 Fighting
4 Blend WLFM
The most obvious omission is Catcher, since I'm new to the game and I haven't got it. From my experience with this deck, as long as I'm getting Emolga consistently T1, I have little problems for the remainder of the game unless I see max potions on Darkrai decks. The largest advantage of this deck, by far, is the fact that your opponent will have to knock out 6 of your Pokemons as opposed to you (mostly, anyways) having to only kill off 3 Pokemons. The low energy attacks are also awesome, although the 120 damage cap leaves somethings to be desired. Then again, you can't really expect to OHKO EXs without using another EX, right? And yes, the Escape Rope does serve, to an extent, like a Pokemon Catcher when the opponent only has one bench.