Wormhole dragon

Parallel Monster are a type of Monster Card, first released in Return of Justice. The color of their card frame is light blue, with an orange card name. These cards are placed in the Extra Deck.

To be properly Special Summoned, Parallel Monster must first be Parallel Summoned. If they leave the Extra Deck without being Synchro Summoned, they cannot be Special Summoned while they are banished or in the Graveyard.

Like other Extra Deck monsters, Parallel Monster cannot exist in the hand or Main Deck (even with card effects). If a Parallel Monster would be moved to the hand or Main Deck, it is returned to the Extra Deck instead. If a card like "Transmigration Break" or "Degenerate Circuit" is applying, this will override the Parallel Monster's ability to return to the Extra Deck.

Parallel Summoning

Main article: Parallel Summon

Parallel Summon is the act of Summoning a Parallel Monster from the Extra Deck using 2 or more monsters of the same name. During the Main Phase 1 or 2, the turn player can Parallel Summon a Parallel Monster from the Extra Deck by placing monsters they control on the bottom of their Deck.


Parallel Monster usually have Science Fiction theming, primarily related to outer space.

The Original Level of a Parallel Monster is always equal to triple the Level of the named Parallel Material, regardless of the number of Parallel Materials, thus restricting the Level of a Parallel Material to 4.

Parallel Materials are almost exclusively non-Effect Monsters, if not Normal Monsters.

Playing style

Due to it's effect to Special Summon 2 Level 4 or lower Normal Monsters of the same name from your Deck, Rescue Rabbit is a vital card in decks focused around Parallel Monster.

For a list of Parallel Monsters see "List of Parallel Monsters".

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