[@Lugubrious] I have a couple ideas

[i]Broker[/i]
An epithet that allows the user to "buy" and "sell" other epithets. Essentially, they can temporarily steal another epithet, but the catch is they can only hold one at a time and must return the current epithet to its owner before snagging another. They can also temporarily switch the epithets of other people.

[i]Byway[/i]
The user isn't forced to use any of the "main roads" of life. This grants the user the ability to create  various types of spacial byways including linked portals that allow travel between them and static portals that go straight through solid objects.