"Alright. Let's get this done. Even though our possessed self established millions of beings for us to Bind ourselves to, we are going to have to complete the process," a phantom said.
And indeed, this was the case, but Mortal Binding was supposed to take several hundred days for the average combatant. It only made sense, as normal individuals didn't get to experience things that touched upon the boundary of Divinity so often, unlike Skullius.
And speaking of this comparison…
"It shouldn't take us too long, right? Our possessed self already had experience with Mortal Binding and Ember Tasting because of Fulgardt. I believe the only thing that was stopping him from crossing to Divinity was because he was still at the Incandescent Stage," another phantom theorised.