Om Gum Ganapatayei Namah (TSR-015 R) [The Battle at the Sacred Ruins]

You pay W or 1 less to play this card for each instance of"Mantra" J/rulers you control have. If the combined number of instances of"Mantra" J/rulers you control have is 5, J/rulers with "Mi Sung" in their name gain one instance of"Mantra" until end of game, then you gain "If a Taoist J/resonator you control would deal battle damage to a player, it deals triple that much instead." and "You cannot play cards named "Om Gum Ganapatayei Namah"." until end of game.