Attacks » Altered Creation GX | Trainers » Channeler
Does Channeler negate the effects of Arceus & Dialga & Palkia GX's "Altered Creation GX" attack?
It depends on who is playing the Channeler. If the player who used Altered Creation GX uses Channeler then the effects are removed; the player's Pokemon no longer do +30 damage and the player does not get to take any extra prizes from the effect. However, if the player's opponent plays Channeler, then Altered Creation GX effects are not removed as they reside on the other player (who did not play Channeler).
Source: TPCi Rules Team (2020-01-09)
Attacks » Blazer | Gameplay » Knock Outs & Prizes
If a player has some face up prize cards from using Blacephelon's "Blazer" attack and then takes a multi-prize knockout, do they take their prizes one at a time or must they take all of them at once?
Whenever you take more than one prize in a single action, each prize can be taken one at a time.
Source: TPCi Rules Team (2020-01-09)
Errata » Sitrus Berry | Trainers » Sitrus Berry
The wording of Sitrus Berry is now as follows, "At the end of each turn, if the Pokémon this card is attached to has 3 or more damage counters on it, heal 30 damage from it and discard this card."
Source: TPCi Announcement (2020-01-09), TPCi Rules Team (2020-01-09)
Errata » Professor's Research | Trainers » Professor's Research
In the Expanded format, there's already a rule that says you can't include Professor Sycamore and Professor Juniper in the same deck; players must choose one or the other. The same rule applies to Professor's Research, meaning it cannot be in the same deck as Professor Sycamore or Professor Juniper.
Source: TPCi Announcement (2020-01-09), TPCi Rules Team (2020-01-09)
Errata » Pal Pad | Trainers » Pal Pad
The wording of Pal Pad is now as follows, "Shuffle up to 2 Supporter cards from your discard pile into your deck."
Source: TPCi Announcement (2020-01-09), TPCi Rules Team (2020-01-09)
Trainers » Lum Berry | Errata » Lum Berry
The wording of Lum Berry is now as follows, "At the end of each turn, if the Pokemon this card is attached to is affected by any Special Conditions, it recovers from all of them, and discard this card."
Source: TPCi Announcement (2020-01-09), TPCi Rules Team (2020-01-09)
Errata » Hyper Potion | Trainers » Hyper Potion
The wording of Hyper Potion is now as follows, "Heal 120 damage from 1 of your Pokémon that has at least 2 Energy attached. If you healed any damage in this way, discard 2 Energy from it."
Source: TPCi Announcement (2020-01-09), TPCi Rules Team (2020-01-09)
Trainers » N's Resolve
Can you use N's Resolve if you have no Dragon Pokemon on your Bench?
No. You have to have a Dragon Pokemon in play in order to play this card. The intention is that the main effect of the card is to attach basic Energy cards to your Benched Dragon type Pokemon, so if you don't have a Dragon type Pokemon on your Bench, you can't play the card. (You also can't play the card if you have 0 cards remaining in your deck.)
Source: TPCi Rules Team (2019-12-05)
Attacks » Impersonation
When using Mimikyu's "Impersonation" attack, can I discard a Supporter like Green's Exploration or Morgan and bypass the requirement that says you can only play the Supporter if you do such-and-such?
You can discard those types of Supporter cards with Impersonation, but if you don't meet the Supporter card's requirements you cannot do what is says.
Source: TPCi Rules Team (2019-12-05)
Attacks » Impersonation
If I use Mimikyu's "Impersonation" attack to discard an opponent's Whitney, does that Whitney count for the "draw 2 cards for each other Whitney in your Discard Pile" because you're not actually playing that Whitney, just using its effect?
No, you still cannot count that Whitney towards the number of cards to be drawn because its text only includes any OTHER Whitney in your Discard Pile.
Source: TPCi Rules Team (2019-12-05)