Advanced format ruling
Rod of Silence - Kay'est
Card effect (current official text)The equipped monster gains 500 DEF. Negate other Spell effects that target the equipped monster, and if you do, destroy that Spell Card.
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.