Player Responsibility For Tracking Prizes Drawn

[MegaVelocibot]

The most recent Tyranitar's Ability, Roar of Anger, states the following: "You may use this Ability when you play this card from your hand to evolve 1 of your Pokemon. Attach as many [D] Energy cards from your discard pile to this Pokemon as Prize cards your opponent has taken."

Suppose a player has been using Palkia & Dialga LEGEND's Time Control attack, which includes the following effect: "Add the top 2 cards of your opponent's deck to his or her Prize cards."

Which player (if not both players) is responsible for tracking the game state of Prize cards? If a dispute between two players on how many Prize cards have been drawn arises, how should a judge handle the situation?

 

[tutti]

It's both players' responsibility to keep track of the game state. I would likely let the player with the Tyranitar and the Palkia&Dialga carry more of it in this situation, since they're both changing the Prize count and playing off it, but the other player needs to pay attention too.

In a dispute, you pretty much have to gather whatever information you can, then decide who you believe is right. Absent any concrete proof that's really the best you can do.