If this card was revealed from the deck or sent to the trash by your Blue effect, you may add it to your hand. If it is added from your Trash to your hand, put one core from the Void to your Blue-only Grandwalker Nexus.
Flash - Ignoring the cost of Braves, destroy an opposing Cost 7/8/9 Spirit. Also, by sending one core from your Blue-only Grandwalker Nexus to the Void, also destroy an opposing Spirit with a (When Advents) effect.
Ruling: This card that is discarded from deck is counted as being 'sent to trash'.