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61 votes

Am I technically allowed to look up cards during a Magic tournament match?

You can look up things on the Internet during a match per MTR 2.12: Electronic devices are permitted, but players may not use them to access information that contains substantial strategic advice or ...
piotrek's user avatar
  • 2,563
46 votes
Accepted

How does your opponent verify you have not more than 4 of a particular card in your deck?

In general, your opponent cannot conclusively verify that your deck is legal. As you mention, you can always concede to prevent them from seeing certain cards. However, this statement that you made in ...
murgatroid99's user avatar
  • 82.6k
43 votes
Accepted

Is refusing to concede in the face of an unstoppable Nexus combo punishable?

No, Bob's behavior here should not be punished. The Magic Tournament Rules have the following definition for Slow Play: Players must take their turns in a timely fashion regardless of the ...
murgatroid99's user avatar
  • 82.6k
26 votes

Is refusing to concede in the face of an unstoppable Nexus combo punishable?

It's not punishable. A judge may make sure Bob isn't taking too long to play (for example he really has nothing to think about each turn so should not be spending more than a few seconds to draw card, ...
Tim B's user avatar
  • 1,441
21 votes

When the match time is called, does the current turn end immediately?

The active player takes the rest of the turn as usual, then the five-turn count begins. This is based on my own experience, but it is likely that if they wanted to end the turn immediately they would ...
murgatroid99's user avatar
  • 82.6k
19 votes
Accepted

After how many iterations can I shortcut the Delina, Wild Mage / Pixie Guide combo?

The statement in that tweet is not backed up by the rules. Rule 722.2a describes how taking shortcuts works: At any point in the game, the player with priority may suggest a shortcut by describing a ...
murgatroid99's user avatar
  • 82.6k
16 votes
Accepted

Does showing my opponent I have an effective win condition qualify as improperly determining a winner?

The key phrase in that rule is in the first sentence: A player uses or offers to use a method that is not part of the current game (including actions not legal in the current game) to determine the ...
murgatroid99's user avatar
  • 82.6k
15 votes
Accepted

How do I handle a gameplay error when I have an equivalent play available in a tournament?

The attack was illegal. Your opponent can call a judge at any time, and is required to do so as soon as he noticed the error. The consequences of that error depend on the rules enforcement level (REL) ...
Hackworth's user avatar
  • 51.8k
15 votes
Accepted

How does your opponent verify that you're able to cast a Companion card?

Presenting a card as your companion requires you meet the companion condition. Like every keyword in magic, there is a section of the comprehensive rules that cover the ability, and those rules are ...
Andrew's user avatar
  • 14.9k
14 votes

What happens if someone builds a MtG Turing Machine in a tournament setting?

This situation, in which no player knows whether a sequence of mandatory actions will end or loop forever, is so rare and so niche that neither the comprehensive rules nor the tournament rules address ...
murgatroid99's user avatar
  • 82.6k
14 votes

How does your opponent verify you have not more than 4 of a particular card in your deck?

The assumption is people are playing with legal decks - this is enforced at higher rules level events by random deck checks (where players are randomly selected and their decks compared to the ...
Andrew's user avatar
  • 14.9k
14 votes
Accepted

Is it permissible to intentionally make an illegal move in order to bluff?

No, you are not allowed to do this because doing so would be a violation of tournament rules at every level. At Competitive and Professional REL, the Infraction Procedure Guide determines how judges ...
murgatroid99's user avatar
  • 82.6k
12 votes
Accepted

Am I technically allowed to look up cards during a Magic tournament match?

As of the July 2021 Magic Tournament Rules Release Notes, you are now able to look up cards on your electronic devices as long as you do so in the open: A few years ago, we opened Regular Rules ...
Kyle Pollard's user avatar
  • 957
11 votes
Accepted

What happens if both players misunderstand the game state until it's too late?

First, players should never rewind game actions on their own; they should always call a judge to resolve problems like this. In the particular situation you describe, it is ambiguous whether any rule ...
murgatroid99's user avatar
  • 82.6k
11 votes
Accepted

In what category of information are timestamps?

There is a simple answer here that resolves all of the conflicts: timestamps are free information if and only if it makes a difference to the current game state. Otherwise, it is private. The Magic ...
murgatroid99's user avatar
  • 82.6k
10 votes
Accepted

In Magic, are you allowed to reveal what cards you have drafted to stop others from drafting the same colors?

The MTR (Tournament Rules) indicate that you are not supposed to reveal the contents of your booster (which includes your pick); visually or otherwise. You may, however, reveal double-faced cards. 7....
TheThirdMan's user avatar
  • 9,301
9 votes
Accepted

Drawing an Extra Card During Mulligan

Friday Night Magic runs at Regular REL, and is covered by Judging at Regular. The Tournament Rules and Infraction Procedure Guide cover Competitive and Professional REL. This answer borrows from all ...
Rainbolt's user avatar
  • 13.8k
9 votes

What happens if both players misunderstand the game state until it's too late?

There was no illegal play, and no reason to rewind the game. From a rules perspective, the players did not notice "too late" that the attack would not be lethal, it was simply a misplay on Alice's ...
Hackworth's user avatar
  • 51.8k
8 votes
Accepted

Is declining to win to burn time on the clock punishable?

I would say that this is not in violation of any rules. By taking more turns than necessary, Alice is giving Bob additional chances to draw outs to this situation, so it is not unambiguously to Alice'...
murgatroid99's user avatar
  • 82.6k
8 votes
Accepted

If a player goes to "combat", and then activates an ability, what is the game state?

As of the release of Amonkhet, the "Go to combat" tournament shortcut changed, and it now unambiguously supports Anthony's interpretation of the sequence of events. The game is in the ...
murgatroid99's user avatar
  • 82.6k
7 votes

How does your opponent verify that you're able to cast a Companion card?

Companion-related cheating is much the same as other existing forms of cheating regarding illegal decks and sideboard. Call a judge just like in any other situation where you suspect someone is ...
ryanyuyu's user avatar
  • 4,073
6 votes
Accepted

What if somebody used counterfeit/proxy basic lands in an official MTG tournament?

The tournament rules only allow official WotC product and make no distinction between basic lands and others. What would actually happen in a sanctioned event is ultimately the decision of the head ...
Hackworth's user avatar
  • 51.8k
6 votes
Accepted

Whose turn is it when the end-of-round 5 turns are called and the turn is being passed?

The turn has not yet ended. To end your turn, all players must pass priority until the stack is empty, all players must pass priority once more to end the current step or phase, and then all players ...
ikegami's user avatar
  • 47.7k
6 votes
Accepted

Should I tell opponent they can't draw a card if they try to cantrip when I have a "can't draw more than one card a turn" effect in play?

In this situation, you're certainly not required to proactively tell your opponent that they can't draw a card. In other words, when they cast the Preordain, you don't need to remind them. When it ...
David Z's user avatar
  • 6,974
6 votes
Accepted

What happens if you cast a modal spell but choose illegal modes?

The opponent gets to take back Izzet Charm; see below for untapping lands. The important rule here is 601.2 which states (in part): If a player is unable to comply with the requirements of a step ...
Philip Kendall's user avatar
4 votes

Scrap Trawler triggers

You have to choose and return a valid target if there is one. You have to follow instructions of all spells and abilities that resolve. Scrap Trawler's ability requires you to target a valid card in ...
Hackworth's user avatar
  • 51.8k
4 votes
Accepted

What happens if someone builds a MtG Turing Machine in a tournament setting?

According to the rules, the machine would be played out until one of the following occurs: It halts. (A player wins and the other loses) It visits a previously-visited state. (Loop of mandatory ...
ikegami's user avatar
  • 47.7k
4 votes
Accepted

Missed State-Triggered Abilities

This situation is so narrow and unusual that it is not addressed by the Infraction Procedure Guide, and the handling would be up to the judge's discretion. State-triggered abilities are unusual, and ...
murgatroid99's user avatar
  • 82.6k
3 votes

How does your opponent verify that you're able to cast a Companion card?

A player may declare a companion only if that player's starting deck conforms to that companion's deckbuilding rule. You cannot directly check your opponent's deck for being legal for that companion; ...
Hackworth's user avatar
  • 51.8k
3 votes
Accepted

Can I bring a visual flow chart for complex magic cards to events?

No, you cannot refer to pre-made notes or diagrams like that during matches in a tournament. The Magic Tournament Rules section 2.11 says the following: Players are allowed to take written notes ...
murgatroid99's user avatar
  • 82.6k

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