Fickle Face of Fey
Least; 1
This invocation allows you to change how you appear to look like. This invocation works as the spell, Disguise Self.
(Well, that was easy. )

Word of Power
Dark; 6
The warlock speaks a mighty word, and suddenly, all who hear him cower before his presence.
This invocation allows you to cause any number of creatures within 30ft of you to become cowering for 1d4 rounds, if they fail the will save against this invocation.

The first one was really simple, but the second one might be a bit off. Thoughts? Rotten tomatoes? Ideas?