[Laughing_Man]

Originally Posted by spiritomb

Please explain why kiba inuzuka n1440 can't negate the effect of a quiet day m914? The card is a permanent mission, its being played during the attackers mission phase thus fulfilling kiba's requirements. A mission is considered a mission while on the chain or in play. This is why mission negation worked well on ji thus warranting ji's recent errata.

link here

The effect text of a card can only be negated if that card is in play.