Advanced format ruling
Tower of Babel
Card effect (current official text)Each time a Spell Card is activated, place 1 Spell Counter on this card when that Spell Card resolves. If the 4th Spell Counter is placed on this card: Destroy this card, and if you do, the player who activated the Spell Card at that time takes 3000 damage.
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.