What i really want, Cloud...
Is to travel the Darkness of cosmos using this planet as my vessel.
As Mother did before me...
One day we will discover a new world.
We will create the future on that ground."
After this, he summon the corrupted one to cover the sky, and with a wave of his hand(one second before attacking Cloud) "order" the corrupted one, to descend(in form of "tentacles") to destroy everything(because is very obvious that, to transform the planet in a vessel, he have to destroy all life in it first).