they appeared.

They appeared with the champions and their ways were essential to shut down a core crystal which could nullify abilities and kill people generally when it would overload eventually exploding everything in sight.
" everyone combine your abilities with ours as we practiced"

"Alright"
Everyone did. And while soldiers were held off.
And people flew behind them with wings or with synthetic ones.

They with the champions sent a pulse that destroyed the crystal.

It blacked out from its glow and it fell apart suddenly at the bottom as if the end of it was turning into small fine crystals.

" evacuate"
said the head leader and they were to turn away and join in the assault to get out.