Om Tayata Bekanze (TSR-013 N) [The Battle at the Sacred Ruins]

[Quickcast] [Remnant] You pay X less to play this card, where X is the combined number of instances of"Mantra" J/rulers you control have. If the combined number of instances of"Mantra" J/rulers you control have is 3, J/rulers with "Mi Sung" in their name gain one instance of"Mantra" until end of game, then you gain "If damage would be dealt to you or to an entity you control, prevent Y00 of it, where Y is the number of Taoist entities you control." until end of game.