Advanced format ruling
Soul-Absorbing Bone Tower
Card effect (current official text)If you control another Zombie-Type monster, your opponent cannot target this card for attacks. Each time a Zombie-Type monster(s) is Special Summoned: Send the top 2 cards of your opponent's Deck to the Graveyard.
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.