Advanced format ruling
Crystal Abundance
Card effect (current official text)Send 4 "Crystal Beast" cards from your Spell & Trap Card Zone to the Graveyard; send all cards on the field to the Graveyard, then Special Summon as many "Crystal Beast" monsters as possible from your Graveyard, up to the number of cards your opponent controlled that were sent to the Graveyard by this card's effect.
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.