When this card is sent from the Deck to the Trash by the effect of your "The Grandwalker Hephaestus," it can be summoned without paying the cost.
[LV2] (Your Turn) When a Blue-only Saga Brave card is discarded from your Hand by the effect of your "Artificial Soldier" family Spirit, instead of sending it to the Trash, you can pay one cost to summon it.
While the Egyt camp is about to be routed by Anubis, Hermes stood alone before Athena, Apollon and Artemis. They outnumbered him, so they thought they had the advantage, but then Hephaestus appeared, bringing their forces to an even level... or so it seemed at first. ー"Genesis Records" New Volume 3:28ー