When this card was either revealed by the effect of your "Godseeker CatGoddess Bastet" or sent to the Trash by the effect of your "The Grandwalker Ra," 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 - During this turn, opposing 10000 BP or less Spirits and 20000 BP or less Ultimates can't Attack/Block. Also, by sending three cores from your "The Grandwalker Ra" to the Void, refresh all your "Imaginary Beast" family Spirits.