Advanced format ruling
Crystal Tree
Card effect (current official text)Each time a "Crystal Beast" monster(s) is placed in either player's Spell & Trap Zone, place 1 Crystal Counter on this card. You can send this card to the GY; take a number of "Crystal Beast" monsters from your Deck equal to the number of Crystal Counters that were on this card, and place them face-up in your Spell & Trap Zone as Continuous Spells.
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.