When this card was either revealed by the effect of your "Godseeker GrandseaPirate Bandous" or sent to the Trash by the effect of your "The Grandwalker Poseidon," you can add it to your hand. When you've done so, put one core from the Void to a Grandwalker Nexus you control.
Flash - Ignoring costs of Braves, destroy opposing Spirits/Ultimate up to a total of 7 costs. Also, by sending one core from your "The Grandwalker Poseidon" to Void, for each Spirit/Ultimate destroyed by ths effect, discard two cards from the opposing decktop, if possible.