Restrictions on Card Usage

In UNION ARENA, a deck may have up to 4 cards of the same card number. However, in official and sanctioned tournaments, the number of some cards that can be included in the deck will be restricted.

  • *Cards with the same card number but with different illustrations are also considered the same cards.
Card Number

Selection and Announcement, and Enforcement.

  • ・We will closely monitor the win-rates, tournament results, and usage of certain decks to consider enforcing restrictions if certain decks deviate from our game’s objective.
  • ・Please note that depending on the environment of the game, the status of [Restricted Cards] may change.
  • ・We will continue to announce considerations for these restrictions through official broadcasts after major events and tournaments, Producer’s Letters, and the official Twitter. When this page is updated, there will be a post on the official Twitter as well.
  • ・We plan to review the restricted card list once every 6 months and will only lift restrictions on cards if we do not observe a significant bias in the outcome of the events.

Restrictions on Card Usage Effective March 22, 2024

Pair Ban: The following 2 types of cards cannot be included together in the same deck.


JJK-1-038 Yuji Itadori
JJK-1-105 Sukuna
  • *Including parallel cards
  • Card
  • Card

In the "Blue Sukuna Deck," commonly known as the "JUJUTSU KAISEN" deck, in which the effect is enhanced by collecting "JJK-1-063 Sukuna's finger" in the Outside Area, the combination of "JJK-1-038 Yuji Itadori" and "JJK-1-105 Sukuna" can be used to collect "JJK-1-063 Sukuna's finger" in the Outside Area in a highly repeatable manner.

The combination of these two cards can activate powerful effects from the early stages of the game, giving them an advantage over other decks, and we have decided to ban these two types of cards in the same deck.

The usage rate of decks with the above card pairing have a higher win rate in events than expected, going against UNION ARENA’s goal to for players to have fun with a wide variety of decks. As such, a decision for this Pair Ban has been made.

Deck construction example

OK: JJK-1-038 Yuji Itadori x 4,JJK-1-105 Sukuna x 0

NG: JJK-1-038 Yuji Itadori x 3,JJK-1-105 Sukuna x 2

Restrictions on the use of cards currently in effect

Restricted Cards: Only one card can be included in the deck.

UNION ARENA Code Geass Lelouch Lamperouge

CGH-1-083 Nunnally Lamperouge
  • Card