I find the Warlock level 20 feature Eldritch Master totally useless as it states:
Eldritch Master: At 20th level, you can draw on your inner reserve of
mystical power while entreating your patron to regain
expended spell slots. You can spend 1 minute entreating
your patron for aid to regain all your expended spell slots
from your Pact Magic feature. Once you regain spell slots
with this feature, you must finish a long rest before you
can do so again.
But your spell slots are always recharged on a short rest.
Spell Slots: The Warlock table shows how many spell slots you have.
The table also shows what the level of those slots is; all
of your spell slots are the same level. To cast one of your
warlock spells of 1st level or higher, you must expend a
spell slot. You regain all expended spell slots when you
finish a short or long rest.
So, what's the point of Eldritch Master? I thought that maybe an errata and the recharged slots are the ones from Mystic Arcanum, that would be a good 20th level feature.
We are using a short rest variant that makes short rests 5-10 minutes instead of an hour.