Facing Nightmare Saya, everyone actually wasn't afraid of a frontal confrontation because among Ange's forces, few possessed the emotion of fear. By then, throwing tens of millions or even hundreds of millions of Undead creatures at it, they could literally grind it to death.
Without feeding on fear, Shay would be like a river without a source, bound to dissipate one day.
What everyone feared most was it directly charging into the Master Plane, finding a tree to die under, or simply slashing its neck, spraying flesh and blood everywhere across the plane. That would be troublesome.
However, it was as they discussed strategies that Ange looked up and said, "Breed, eat Shay, insects."
Negris and Anthony's eyes lit up.
This was a very feasible method. Swarms of flesh-devouring insects could be far more terrifying than Shay in its younger days. If the entire plane were covered with these insects, they would swarm over Shay upon sighting it.