The Immortal (Undying Redesigned)

Death holds no sway over your patron, who has unlocked the secrets of everlasting life, although such a prize—like all power—comes at a price. Once mortal, the Immortal has seen lifetimes pass like the seasons, like the flicker of endless days and nights. It has the secrets of the ages to share, secrets of life and death. Beings of this sort include Desirat, the Twilight Phoenix; Eldenser, the Lurker; the Undying Court of Aerenal; Doctor Mordenheim, the Darklord of Lamordia; and the Raven Queen.

Expanded Spell List

The Immortal lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Immortal Expanded Spells

Spell Level	Spells
1st	bless, heroism
2nd	enhance ability, silence
3rd	revivify, spirit guardians
4th	aura of life, death ward
5th	legend lore, raise dead

Timeless Wisdom

Starting at 1st level, your patron shares their lifetimes of experience in dire situations. At the end of a long rest, choose one skill in which you lack proficiency. Until your next long rest, you are considered proficient in this skill.

Starting at level 10, your proficiency bonus is doubled for ability checks with this skill.

Bulwark of Life

Starting at 1st level, you learn the spare the dying cantrip. It counts as a warlock cantrip for you, but doesn't count against your number of cantrips known. You also have advantage on saving throws against any disease.

You gain the ability to find vitality in the face of mortality. You can regain hit points equal to 1d8 + your Constitution modifier (minimum of 1 hit point) when you succeed on a death saving throw, or when you stabilize a creature with spare the dying. You can use this feature a number of times equal to your proficiency bonus.

You regain all uses when you finish a long rest.

Defiant Focus

Starting at 6th level, your mind becomes resilient against pain and exhaustion. If you fail a Constitution saving throw to maintain concentration on a spell, you can choose to succeed instead.

Once you use this feature, you can't use it again until you finish a short or long rest.

In addition, you don't require sleep, although you still require rest to reduce exhaustion and still benefit from finishing short and long rests.

Uncanny Fortitude

Starting at 10th level, your body begins to lose its connection to material needs. You now have resistance to necrotic damage. You can hold your breath indefinitely, and you don’t require food nor water.

In addition, when an attacker that you can see hits you with an attack, you can use your reaction to add your Charisma modifier to your AC. This bonus lasts until the beginning of your next turn. You can use this feature a number of times equal to proficiency bonus, and you regain all uses after you finish a long rest.

Indestructible Life

When you reach 14th level, you partake in some of the true secrets of defying death. On your turn, you can use a bonus action to spend a number of warlock hit dice up to half your warlock level. Additionally, if you put a severed body part of yours back in place when you use this feature, the part reattaches.

In addition, you age at a slower rate. For every 10 years that pass, your body ages only 1 year, and you are immune to being magically aged.