Gammadoodler
Hero
Are any of these results you could not achieve by just..lying? If so, why?It isn't a fake ID like a card.
This is a new identity. Meaning that you could change your identity to be several ranks above the guards that won't let anyone in.
You could become the king's new royal advisor, seated right beside him to the throne. Or you could be a high-ranking lieutenant in the BBEG's office. The player gets to decide.
But just like a spell, the DM determines the consequences.
So it takes 7 days because it actually can be adventure-changing and can change whole plot points.