Ruling Notice: Mind Crush

This will be the first in a new series of posts issued periodically by the GoatFormat.com Judge Corps so as to clarify and update our recommendations for certain ruling and policy matters. Here, we are going to do a deep dive on Mind Crush and how its effect ought to be resolved.

In the past, we have stated that the user of Mind Crush is entitled to check the opponent's hand for verification in all cases. We have held this to be the case when the opponent discards zero copies of a Forbidden card, when the opponent discards one copy of a Limited card, when the opponent discards two copies of a Semi-Limited card, when the opponent discards three copies of an Unlimited card, when the opponent discards one copy of an Unlimited card with two other copies already in the Graveyard, and so on. Our ruling here was extrapolated from a few key pieces of documentation. First, a Netrep 3.0 ruling on Troop Dragon:

Q: When the third "Troop Dragon" is destroyed, is your opponent allowed to inspect your deck to verify that you do not have another "Troop Dragon" to Special Summon?
A: Yes they can. It should not take long to do this. The Deck would need to be shuffled afterwards, naturally.

This ruling was issued in early 2004 and was interpreted by us to mean that verification of all sorts, whether the Hand or the Deck, would take place even when all legal copies of a card are accounted for. We revisit this interpretation here for a few reasons. First, the extrapolation from an effect like Troop Dragon to an effect like Mind Crush is strained at best. Second, it was not restated in later core versions of Netrep (e.g. 4.0). So the ruling's precedential value, for the Mind Crush issue at the very least, is questionable.

Second, a feature match between Bryan Coronel and Max Suffridge from US Nationals tells a story in which decks were verified after a Morphing Jar was banished by a Nobleman of Crossout:

Bryan began his next turn by taking out Max’s Morphing Jar with Nobleman of Crossout. As he was removing his own, Max offered him his deck. “Want to take the opportunity?” Each decided to look through the other’s deck.

While letter rulings tend to hold stronger precedential value than feature matches, the stakes and clarity of this particular feature merit separate discussion. Still, the value here is questionable, because the narrative structure of the feature makes it difficult to discern the context. It is not clear, for example, whether the players were prompted to offer their decks to each other by the judges, whether they did so entirely seriously, or whether they were obligated to do so to begin with. The offer to verify appears to have been made by the controller of the banished Morphing Jar, and it is not clear if the judges would have stopped such verification from taking place if the players were not obligated to verify. At the very least, one reasonable interpretation of the passage is that Coronel and Suffridge agreed independently of binding rulings and policies to check each other's decks. So we do not assign controlling weight to this evidence.

We address two separate but related issues regarding Mind Crush. First, we are updating our policy for verification on online simulators to reflect our longstanding procedure for resolving Nobleman of Crossout. This means that hand verification for effects like Mind Crush, like deck verification for effects like Nobleman of Crossout, should never occur on online simulators. That policy is restated below:

It's worth noting that tournament policy at the time stated that the purpose of checking decks was not to memorize the entire contents of the opponent's deck and was to be conducted in a quick fashion to not interrupt the flow of the game. When playing Goat Format online, players are able to screenshot each other's decks in order to gain perfect information without anyone knowing, violating the spirit of the rule regarding deck verification. Because of this, when playing online, it has become standard conduct to not verify each other's decks for cards such as Nobleman of Crossout and Nobleman of Extermination. Instead, to ensure that these cards have resolved correctly, players can simply use the replays at the end of the match.

We never had much in the way of a good reason to have different online procedures for hand verifications as opposed to deck verifications. Both are subject to the same concerns regarding slow play and notetaking. Both are not intended to convey information to the controller of the effect. Both have unique potential for abuse given the realities of online simulators. In both cases, cheaters can be easily identified and punished through the use of replays. Accordingly, we are updating our policies to treat these cases consistently.

Second, we hold that hand verification for Mind Crush should occur in real-world matches only when the opponent of the Mind Crush player does not have any copies of the named card in their hand. If the opponent discards at least one card, the Mind Crush player is not entitled to verification. In lieu of such verification, players may call a judge if they suspect their opponent is cheating.

The official UDE FAQs regarding Mind Crush contain only one mention of hand verification:

If the opponent doesn’t have the named card, you can check their hand to confirm.

The inclusion of one thing is the exclusion of another. We read this ruling to mean that the Mind Crush player can only check their opponent's hand in these circumstances, and always in these circumstances, even if, for example, all three copies of a named Unlimited card are accounted for in public knowledge areas. If UDE had instead meant to require verification in all other cases, they would have said so in their rulings.

This interpretation is confirmed by a forum post in May 2005 by Steve Okegawa of Netrep fame:

Incidentally, "Mind Crush" only allows you to check the opponent's hand for verification if they discard no cards.

Example: You activate "Mind Crush" and declare "Smashing Ground", and the opponent discards 1 "Smashing Ground" from their hand. You do not get to see the opponent's hand in this case. If you really have suspicions, you can get a judge to verify for you.

However, if you declare "Smashing Ground" and the opponent doesn't discard anything, in this case you can check their hand to verify this.

This appears to have been the common understanding of Mind Crush in organized play under UDE for quite some time after 2005, as explained as late as 2008 by ness00 of the Organization:

Mind Crush's most agreed upon resolution is:

-If your opponent doesn't have any copies, s/he shows his/her hand to verify, and proceed as Mind Crush says (you discard one of your Cards at random).
-If your opponent discards at least 1 copy, you don't get to verify.

The obvious answer is "how do I know that s/he doesn't have more copies?". You don't. You can call a judge to verify, but I find it in really bad taste. If your opponent did have more copies, s/he can be Disqualified for cheating.

This ruling is consistent with various longstanding policy canons by which private knowledge is generally supposed to remain private unless otherwise required by a ruling or a card effect. If it empowers any cheaters at all, it only empowers the stupidest among them, as a simple judge call would make for a clean and easy disqualification were a player found to have kept another copy of the named card in their hand. So with all of the available evidence in consideration, we think this is the most fair and accurate way to rule the card.

We do not reach the question of the extrapolation of these rulings to any other cards. Until further notice, the status quo rulings should be applied to all cards other than Mind Crush. These updates shall be effective immediately at all official GoatFormat.com events.