"Against someone with primordial immunity," Rex said, "I become significantly more dangerous in the physical register specifically."
"You become the most dangerous thing in the physical register," Lustia said. "Because the physical register is the one category where primordial frequency has no answer."
"And of course... you can go even wilder if you're trying to do genocide on those trash in the Underlayer or better... those reincarnators and apostles that roam around Aethelgard."
"Before you can get to the kingdom..." Lustia grinned. "Why not make Aethelgard become your bitch first?"
"Aside from that, later," Rex said.
And then he thought about Celestina, the thirty years of operations, and the primordial-frequency immunity baked into standard Legion equipment at a level that suggested it was not borrowed technology but developed technology. Someone who had understood primordial frequency well enough to weaponize it at scale.
"About Celestina..."
