Can I separate my discard pile in two stacks to make it easier to count energy?
No, you have to have a single neatly stacked discard pile. You may sort or turn cards neatly in that pile if it helps the game go more quickly, but they must all be touching.
Source: PUI Rules Team (2008-10-16)
I like to keep my deck and discard pile sideways to help me keep them separate from my bench. Is that OK?
Your deck must be oriented vertically, to avoid revealing information during handling or cuts. You may turn your discard pile 'sideways', to help you distinguish it from your bench.
Source: PUI Rules Team (2008-10-16)
Is it OK to roll a dice to randomize my Rock-Paper-Scissors choice?
No. R-P-S is a game of strategy. You must not appear to be randomizing your choice by any method.
Source: PUI Rules Team (2008-10-16)
Can I use dice or cards to indicate my throw in Rock-Paper-Scissors?
You may not use dice to indicate your choice, as it is too easy to manipulate the dice while it is covered. The requirements for R-P-S cards are that they must have identical backs, that they clearly say "Rock" or "Paper" or "Scissors" on the front and that all themes on the cards be appropriate for a Pokemon Event as determined by the Head Judge.
Source: PUI Rules Team (2008-10-16)
Can you have 4 Electivire and 4 Electivire Lv.X in the same deck?
No, Lv.X Pokemon are considered the same as other pokemon with the same name. You may only have a maximum of 4 combined in your deck (i.e. 3 Electivire, 1 Electivire Lv.X).
Source: PUI Rules Team (2008-09-25)
Does special Metal Energy reduce damage done to me from attacks by my own Pokemon?
Yes, as long as it is attached to a metal type Pokemon. But keep in mind that Metal Energy does NOT prevent the "placing of damage counters" (not same as "damage done").
Source: PUI Rules Team (2008-09-11)
Forretress's "Iron Shell" Poke-BODY is not optional; you *MUST* flip a coin whenever attaching a Basic Energy Card to Forretress.
Source: PUI Rules Team (2008-08-28)
Can I have 4 Deoxys Attack Forme and 4 Deoxys Speed Forme in my deck?
Yes, the "Forme" is part of the name, so you can have 4 of each.
Source: PUI Rules Team (2008-08-07)
Can I use Eevee's "Call for Family" to search through my deck if I already have four Eevee in play or in the discard pile?
You can use the attack, but you cannot search your deck since it is public knowledge that you won't find an Eevee because all four copies of the card are already in known areas.
Source: PUI Rules Team (2008-07-17); TPCi Rules Team (2023-03-23)
Can I use Rare Candy to evolve from Dome Fossil to one of the Kabutops from older expansions that evolve from Mysterious Fossil?
Since Kabutops can evolve from Kabuto of any expansion, you may use Rare Candy to evolve either Dome Fossil or Mysterious Fossil into any Kabutops, regardless of expansion.
Source: PUI Rules Team (2008-05-22)