RE: Viletar for Battle Roads? please help!
I would say take out one Cleffa and put in a Tyrogue. If you open Yanma to their baby, it's way too easy to just Collector the Tyrogue out of your deck, retreat yanma for free and ko their baby. Cleffa is nice because it's a searchable hand refresh on the odd hand that you don't get a Judge or Copycat. You can use Manaphy instead of her for Manaphy's bigger HP. The thing I like about cleffa and this deck is that, with trainer lock, your sleeping babies will remain undisturbed, since they can't reversal/catcher up something else (unless they use a Machoke or their own Tyranitar to knuckle down or power claw, respectively). You can also run a single Unown Dark for a searchable special energy, if you want. They are really good for those opening hands where you have a Collector but no energy. Otherwise, the Pokemon line looks good to me.
On your TSS, I would get rid of Interviewer's and maybe even knock the flower shop lady down to 1 for a beefier Copycat/Judge line and another Collector. Collector is just way too good a card not to have maxed out, especially in a deck which relies on getting two stage two's out as quickly as possible and which runs a variety of other Pokemon. I think you'll find that you won't miss the Interviewer's; with Yanmega as your partner, you don't need nearly as much energy. And with your constant Judge and Copycat handrefreshing, you are bound to find the energy you need. On the note of energy, I agree with Dark Void; you don't need grass energy. Vileplume is a precious gem that needs to be kept safe on the bench and Yanmega should never have any energy on him (unless it is a rescue). So, while we are talking about energy, I would recommend 4 special dark, 4 DCE, and 5 regular dark. This should be more than enough to power 2, maybe 3 T-tars and a Zoroark. You need heavier lines of Judge and Copycat because 1. Obviously, Yanmega needs some help. 2. This will increase the odds of you drawing into what you need, as, without Pokemon Communication, you'll have a hard time searching for them. 3. With trainer lock, trainers will start piling up in your opponent's hand, meaning Copycat will eventually let you draw massive amounts of cards (be careful not to overdo it, though. T-tar will be discarding lots of your deck and you don't want to run out) Judge is also particularly useful for a similar reason. Once they have a mass of trainers in their hand, you can put all of them back and make them draw only 4. Odd's are, they're just gonna draw a bunch of trainers again.
@Dark Void. Tyranitar isn't going to be using Darkness Howl; he'll be using Megaton Tail, so he won't hurt the bench, just your deck. Cincinno and Donphan do work nicely with Yanmega for pure speed. They just have fairly low damage caps and can't score the one-hit Ko's needed against Reshiram. Reshiphlosion is a BIG problem for Yanmega and stage one decks due to high HPs (nothing for Yanmega to snipe and not enough late game damage output from Cincinno, Donphan, or Yanmega). However, you're right in that if you can get your stage one's set up T2 along with Vileplume shortly after, you can knock most decks down with speed; they will be too crippled by Vileplume to launch a counter attack. The stage one rush deck would mainly utilize Vileplume to cripple the opponent in the hopes of an early win while the Megatar deck would be using it to protect benched T-tar's and Zoroarks from being catchered up before they're ready. There is of course a lot of overlap there; both decks would reap the other benefit to some degree. But I think both are legitimate decks and strategies.
This is the list I'm testing:
Pokemon:24
3-2-3 T-tar prime (Larvitar and Pupitar being the ones with colorless energy costs)
3-3 Yanmega prime
2-1-2 Vileplume
1-1 Zoroark
1 Cleffa
1 Tyrogue
1 Unown dark
Supporters/trainers:23
4 Collector
4 rare candy
4 Elm
4 Judge
4 Copycat
2 Communication
1 Emcee
Energy 13
4 special dark
4 dce
5 dark
I just played against a Magnezone/Yanmega/Kingdra/Jirachi online with this and beat it both times. I know this isn't nearly enough to prove any merit, but I think the fact that the deck worked itself out of a really difficult hole speaks for itself. The first game, I had to mulligan twice before drawing a Pokemon and then opened with Unown dark and no Collector (one reason you might not put him in there...). I managed to Copycat/Judge my way out of the situation, collector for a Larvitar and two Oddishes on the next turn (Yanmega immediately sniped one), rare candy to Vileplume and he was stuck with no great way to evolve his full bench. Furthermore, when he did manage to get the Magnezone prime out, he had so many trainers in his hand, he could only Magnetic draw for one or two cards and then eventually none. He was eventually able to dispose of Vileplume by hitting it with Yanmega for 40 and using Jirachi to devolve it to oddish and take a prize (watch out for this combo; it's the most effective and sneaky way to dispose of a benched Vileplume. The other way is Blastoise it to death). However, by that time I was swinging with two Tyranitars fully powered and he couldn't stop me. The second match went more smoothly. T3 or T4 Vileplume and Tyranitar and he had to scoop. I think the deck has potential. I'll get back to you after more playtesting.