Advanced format ruling
Ojama Knight
Card effect (current official text)1 "Ojama" monster + 1 "Ojama" monster
Select up to 2 of your opponent's Monster Card Zones. The selected zones cannot be used.
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.