[Trigger Counter] When an opposing Ultimate-Trigger hits, if this Magic card is in your hand, you can activate the following effect before the "When hits" effect activates.
█ If the hit card is Yellow, during this turn, the effects of the Ultimate which Hit do not activate.
Flash - During this turn, one opposing Spirit/Ultimate has 0 symbols. Also, by sending one core from your Yellow-only Grandwalker to the Void, during this turn, one opposing Spirits/Ultimates get -10000 BP. Spirits/Ultimates whose BP were brought to 0 by this effect are destroyed.