The Wikia page doesn't seem to reflect on canonicity level of Harry Potter Trading Card Game.

For myself, I'm defining canonicity on two independent axis:

  1. How much input did J. K. Rowling have into the in-universe "facts" of the game?

  2. How did she herself evaluate the game's canonicity, if any? (ala Lucas' opinion of EU books)

The precise answer to both those questions would 100% exhaustively address what I'm after even if there's no precise canon "percentage/position" mentioned in the answer.

  • Now I feel guilty for not finishing my answer. (I was planning to better organize it and bring in a couple of more examples.)
    – ibid
    May 25, 2016 at 3:23

2 Answers 2


Although the the cards were most probably not written by Rowling, she definitley had some input in the game, as can be seen in some cards. enter image description here enter image description here

Quirrels first name and the Flipendo spell, while as of then unrevealed in canon were later confirmed through Pottermore.


I believe the cards were not written by JK Rowling.

I’m unable to find absolute evidence of this, but there are hints in that direction:

  • I couldn’t find a single site that said the cards were written by Rowling herself. They all said “based on the books by JK Rowling”. If Rowling herself had written them, surely that would be mentioned somewhere.

  • The HP Lexicon, which is usually a pretty reliable source, says this of the game:

    Please note that the spells and creatures invented by Wizards of the Coast are not canon and are therefore not included in the main sections of the Lexicon.

    Unfortunately they don’t provide anything to back this up.

  • I found this in their FAQs:

    Is this really magic?

    No. The Harry Potter TCG is simply that – a game. While some of the cards do have spells and potions and other magical terms on them, this simply reflects the wonderful and wondrous world that J. K. Rowling has created around Harry Potter. The Harry Potter TCG is simply a fun way for fans of all ages to pretend for a time that they are a part of this magical world.

    If Rowling herself had written them, I’d expect them to state it outright here. That they haven’t makes me suspicious.

I don’t believe Rowling has ever publicly commented about on opinion of the game, or the canonicity of the facts contained within.

I sent an email to the customer service address in that FAQ, pointing them at this question, to ask who wrote the cards. That bounced almost immediately, so I’ve forwarded it to the Wizards of the Coast customer service address. (WoC were the makers of the game.) Unfortunately their response was not forthcoming with any details.

  • I wonder if contacting WotC would bear fruit? Apr 7, 2015 at 16:44
  • @DVK You can’t see it, but there’s a commented-out section of my answer saying I’m going to do just that, as a note to myself. Done now :-)
    – alexwlchan
    Apr 7, 2015 at 17:05
  • @DVK - WotC is notoriously spotty in their response. Sometimes they are great, sometimes very much not. Hopefully this is one of the better times.
    – JohnP
    Apr 7, 2015 at 17:17
  • @JohnP Alas, not. :-(
    – alexwlchan
    Apr 7, 2015 at 17:51

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