"Mystic" (ミスティック Misutikku) is a series of cards used by Blair Flannigan in the Yu-Gi-Oh! GX anime.

The cards focus on Summoning stronger versions of themselves during the End Phase of a turn that they are destroyed by battle. Only four cards in this series, "Egg", "Baby Dragon", "Dragon" and "Revolution" have been seen. However, the lore of "Revolution" reveals that "Mystic Baby Magician" and "Mystic Baby Knight" also exist, and have upgraded forms (that are unnamed). "Mystic Dragon", the only "adult" form shown, has the current highest ATK of all Level 8 Monster Cards.

Play style

Similar to the "Chrysalis" monsters, the "Mystic" cards focus on playing weak monsters and using their effects to bring out stronger versions of themselves. The "Mystic" cards do this during the End Phase whenever one of them is destroyed by battle. This allows for the quick Summoning of powerful monsters, such as "Mystic Dragon".

Alternatively, "Mystic Revolution" allows a player to bypass the "destroyed by battle" condition and automatically Summons an 'adult' "Mystic" monster if its younger counterpart is on the field.