Advanced format ruling
Bubble Crash
Card effect (current official text)This card can only be activated when any player has 6 or more cards on the field and/or in their hand. The player(s) then select and send cards to their respective Graveyards until the amount remaining on the field and in their hand is 5.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.