There are three tournament formats in the WIXOSS TCG.
Diva Selection[]
In Diva Selection (ディーヴァセレクション Dīva Serekushon) format, players may only play cards with the Diva Selection symbol 
in the lower-right corner of the card. This includes sets released from December 2020 onward. It is the format that English edition WIXOSS is conducted in.
Additionally:
- Players may include any level 0 LRIG in their LRIG deck regardless of symbol, as long as that LRIG's colors and LRIG types are exactly the same as that of a level 0 LRIG with a Diva Selection symbol.
- Players may use three LRIGs in Diva Selection: one center LRIG and two assist LRIGs.
Formerly, players could only include cards in their deck that matched the colors of their center and assist LRIGs; this restriction was eventually lifted.
Key Selection[]
In Key Selection (キーセレクション Kī Serekushon), players may primarily only use cards with the key symbol 
in the lower-right corner of the card. This includes:
- All cards in WXK sets
- All promotional and SP cards with a "K" in their set number
- Tawil, Who Reaches Out and Code Accel Fitru from WX-22 Unlocked Selector and Mayu, Genesis Key Miko from the WIXOSS 10th Anniversary Book
In addition, a card without the key symbol is legal as long as it is a level 0 LRIG, is legal in Diva Selection, or has a reprint with a key symbol (such as Innocent Defense, which was first printed without a key symbol but reprinted in WXK-P01 Klaxon).
The Key Selection sets introduced keys, cards that can be played by spending coins and confer benefits for as long as they are on the field. Additionally, Level 4 LRIGs introduced after the advent of Key Selection have a grow cost of 0, compared to the 2-3 ener required of previous level 4 LRIGs.
All-Star[]
In All-Star (オールスター Ōru Sutā), players may play with cards from any set, although Mayu's Room still applies.
At the onset of Key Selection, the intended ratio of Key Selection tournaments to All-Star tournaments was said to be 4:1.
