Must I have my Deck above my Discard Pile on the field, or can I have it the other way around?
The Deck and Discard Pile must be on the same side of the field (either left or right), arranged one above the other. The standard play layout is to have the Discard Pile below the deck, but having the Deck below the Discard Pile is also permitted.
Source: TPCi Rules Team (2015-09-10)
If I use Mega Sceptile EX's "Jagged Saber" attack against Giratina EX with the "Renegade Pulse" Ancient Trait, does Mega Sceptile EX's "Theta Stop" Ancient Trait prevent "Renegade Pulse" from blocking the damage? If not, then does "Renegade Pulse" prevent "Jagged Saber" from attaching any Grass Energy?
Renegade Pulse prevents all effects of attacks done to Giratina EX, but it does not "do anything" to Mega Sceptile EX for its Theta Stop to kick in. So the damage part is blocked by Renegade Pulse, but the effect of attaching energy is not being done to Giratina EX so that part of the attack does not get blocked.
Source: TPCi Rules Team (2015-09-03)
If a Pokemon with an Ability also has the "Theta Stop" Ancient Trait, would it prevent Wobbuffet's "Bide Barricade" from stopping that Ability?
Yes it would because Bide Barricade is an effect that is targeting the Pokemon, so Theta Stop would prevent Bide Barricade from blocking the Pokemon's Ability.
Source: TPCi Rules Team (2015-09-03)
With the "Forest of Giant Plants" Stadium in play, could I evolve from Oddish to Gloom to Vileplume all in the same turn?
Yes. Oddish can evolve into Gloom on the turn it comes into play, and since Gloom has come into play that turn the stadium would allow it evolve into Vileplume right away too.
Source: Ancient Origins FAQ (2015-08-13), TPCi Rules Team (2015-08-13)
Do Primal EX-Pokemon count as Mega Evolved Pokemon? And will they take damage if the "Faded Town" Stadium is in play?
Yes. They have "Mega" printed on them, so they will receive 2 damage counters for Faded Town.
Source: Ancient Origins FAQ (2015-08-13), TPCi Rules Team (2015-08-13)
If I play "Ace Trainer" does my opponent draw 6 cards and then draw 3 cards?
No. After you shuffle your hands in, you will draw 6 and your opponent will only draw 3.
Source: Ancient Origins FAQ (2015-08-13), TPCi Rules Team (2015-08-13)
If I use an attack that says to "discard an Energy attached to your opponent's Active Pokemon" and I choose to discard their "Dangerous Energy" card, would I still receive the 2 damage counters from "Dangerous Energy" or not?
You would not receive the 2 damage counters.
Source: Ancient Origins FAQ (2015-08-13), TPCi Rules Team (2015-08-13)
Does Golurk's "Superpower" attack apply Resistance to the +20 damage it does to itself?
Yes, as long as Golurk is Fighting Type at the time of the attack, Resistance would be applied.
Source: Ancient Origins FAQ (2015-08-13), TPCi Rules Team (2015-08-13)
If Sceptile-EX has its Spirit Link tool attached, but Banette's "Tool Concealment" Ability is in play, what happens if you evolve to Mega Sceptile-EX with the "Theta Stop" Ancient Trait?
Theta Stop prevents the effect of Banette's ability against Mega Sceptile-EX in time for the Spirit Link tool to turn back on and not make you end your turn.
Source: Ancient Origins FAQ (2015-08-13), TPCi Rules Team (2015-08-13)
Can I use Ariados' "Poisonous Nest" Ability if both my and the opponent's Active Pokemon are Grass type?
No, you cannot.
Source: Ancient Origins FAQ (2015-08-13), TPCi Rules Team (2015-08-13)