It's possible that "Thunder Blast" is Kageki's attack name. Hinted by both the name of this card and Kageki's card artwork.
This cards effects are similar to the effects of "Enishi" and "The Six Samurai - Zanji" , although upgraded somewhat. This is also hinted by this cards name, Thunder Blast, which resembles the Attributes of both Zanji and Enishi.
This could be a reference to the event that caused Kageki to sacrifice his limbs, prompting Chamberlain's mechanical arms and legs.