Card Rulings:Koa'ki Meiru Urnight

OCG Rulings

 * The effect of ":" which Special Summons a Level 4 or lower "Koa'ki Meiru" monster from your Deck is an Ignition Effect.


 * Revealing one "Iron Core of Koa'ki Meiru" to the opponent is a cost to activate the effect of ":" which Special Summons a Level 4 or lower "Koa'ki Meiru" monster from your Deck.