Gege didn't say anything else before many portals flashed all around. Many mages appeared, part went towards Arthur and part went towards the pagoda.
As for the rest, they went towards the sky to help Doaf, Amera, and Nicole to fight those incoming enemies.
In fact the upper hand was always in Arthur's allies. They were prepared beforehand for such a fight. So they were mentally and physically prepared, took suitable positions and made strong formations.
As for their enemies, despite being charged in with large momentum and great numbers, they were scattered and not organized.
Plus they needed a few minutes to adapt to the changes that happened after getting in this world. The sealing effect to their powers wasn't something easy.
And so Doaf and Amera aimed at this specific narrow window to cleave the lives of anyone trespassing this world.