Attacks » Altered Creation GX | Attacks » Trickster GX
Say Zoroark GX has Unit Energy {F}{D}{Y} and Rainbow energy attached and uses its "Trickster GX" attack to copy Arceus & Dialga & Palkia GX's "Altered Creation GX" attack. Can Zoroark GX use the extra effect of +1 prize for every KO from Altered Creation GX?
Nope, the two energy attached to Zoroark GX are used to pay for the Trickster GX attack (regardless of how much energy is required for the attack being copied), so in this case there is no "extra Water Energy" to permit the extra +1 prize effect.
Source: TPCi Rules Team (2020-08-13)
Attacks » Trickster GX
Zoroark GX's "Trickster GX" attack allows you to copy an attack from any of your opponent's Pokemon. Does this allow you to copy an opponent's GX attack or not? If so, what if your opponent has already used up their GX attack for the game?
Yes, Trickster GX can copy an opponent's GX attack, even if the opponent has already used up their GX attack for the game. It does not count as using 2 GX attacks.
Source: TPCi Rules Team (2017-12-07)