Here's why:
* CLVX is not a recognized abbreviation in the Pokémon Trading Card Game (TCG).
* Rayquaza has many different cards throughout the game's history, each with its own unique abilities, attacks, and rarity.
To figure out when you can play a specific Rayquaza card, you need to:
1. Identify the specific Rayquaza card you are referring to. Find the card's full name and set (e.g., Rayquaza EX from the Dragon Vault set).
2. Check the card's text. Look for restrictions on when you can play the card, such as:
* Stage: Some Rayquaza cards may require a certain stage (e.g., Basic, Stage 1) to be played.
* Conditions: Some cards may have conditions that need to be met before you can play them, like having a specific type of card in your hand or having a specific effect on the field.
Once you know the specific Rayquaza card and its conditions, you can use it in your Pokémon battles accordingly.
If you are looking for a specific Rayquaza card and are unsure about its details, you can search online for the card's name and set, or consult a Pokémon TCG resource like PokeBeach or Bulbapedia.