What is the purpose of making the connection between seraphim and lucci? The Seraphim are invincible as long as their flames are not extinguished, there is a reference to the fact that the kaido did not collapse despite being attacked a lot. As long as their flame is not extinguished, they can't do damage to the Seraphims no matter who strikes them, and as I said, Base Luffy has shown feats that are far superior to Lucci's awakening form