Om So Hum (TSR-011 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 1, J/rulers with "Mi Sung" in their name gain one instance of"Mantra" until end of game, then put a [400/400] light Monk, Taoist resonator token into the field.