Fey Presence

Your patron bestows upon you the ability to
project the beguiling and fearsome presence of
the fey. As an action, you can cause each creature
in a 10-ft. cube originating from you to make a
Wisdom saving throw against your warlock spell
save DC. The creatures that fail their saving
throws are all charmed or frightened by you
(your choice) until the end of your next turn.
Once you use this feature, you can't use it again
until you finish a short or long rest.