As an action, you can detach one of your hands, which
seperates at the wrist and floats in the air. When you do so,
your current hit points and hit point maximum each decrease
by 3. You can direct a disembodied hand in your space to
reattach to your arm (no action required).
You can use your hand as if it were still attached to
manipulate items, deliver attacks with a one-handed weapon,
or deliver spells with a range of Touch. To do so, you must
expend an action or bonus action as usual.
The hand hovers, but can't move on its own. You can
expend up to 30 feet of your movement to move the hand that
distance.
The hand is considered a Tiny creature with AC equal to
10 + your Charisma modifier and 3 hit points. Its Dexterity
(Stealth) modifier is equal to half your warlock level. For all
other purposes, its statistics are equal to yours.
If your disembodied hand is destroyed, it regrows after 1d4
hours. If the disembodied hand was your only hand, you
cannot wield weapons, cast spells with somatic components,
or use objects until it regrows.
Once the hand has regrown or has reattached to your arm,
you regain the 3 lost points to your hit point maximum.
Only one of your hands can be used for disembodied hand
at any time. If your disembodied hand is destroyed, you can't
use this invocation again until the hand regrows.