Demi-lich's Baby

This subclass is the result of a rogue making a deal with a Demilich. This particular Demilich requires that the signer of the contract end the lives of 20 humanoids each month as payment for what the Demilich did for them.

Editors note: Due to the way dndbeyond is programed, this class looks like it gives more spells than it should and the spells do not restore themselves on a short rest. Only use the highest level spell slots (2 once past level 6) and restore them manually during a short rest. Eldritch blast is not automatically added at third level, and you are given more options for spells than you should have, consult the chart before making your choices. Also, the 13th level feature does not automatically add the damage to eldritch blast, add manually.

Pact Magic

When you reach 3rd level, you gain the ability to cast spells. See Spells Rules for the general rules of spellcasting and the Spells Listing for the warlock spell list. Your spells are fueled by anger.

Cantrips

You learn two cantrips: Eldritch Blast and another cantrip of your choice from the warlock spell list. You learn another warlock cantrip of your choice at 10th level.

Spell Slots

The Demi-lich's Baby Spellcasting table shows how many spell slots you have to cast your warlock spells of 1st level and higher. 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.

For example, when you are 8th level, you have two 2nd-level spell slots. To cast the 1st-level spell hellish rebuke, you must spend one of those slots, and you cast it as a 2nd-level spell.

Spells Known of 1st-Level and Higher

You know two 1st-level warlock spells of your choice from the warlock spell list. At least half of those spells (rounded down) must cause damage.

The Spells Known column of the Demi-Lich's Baby Spellcasting table shows when you learn more warlock spells of 1st level or higher. Each of these spells must be for a level for which you have spell slots. For instance, when you reach 7th level in this class, you can learn one new spell of 1st or 2nd level. 

Whenever you gain a level in this class, you can replace one of the warlock spells you know with another spell of your choice from the warlock spell list. The new spell must be of a level for which you have spell slots.

At all times, at least half of all your spells from this class (rounded down) must cause damage.

Spellcasting Ability

Constitution is your spellcasting ability for your warlock spells, since you learn your spells through your connection to the Demilich. You use your Constitution whenever a spell refers to your spellcasting ability. In addition, you use your Constitution modifier when setting the saving throw DC for a warlock spell you cast and when making an attack roll with one.

Spell save DC = 8 + your proficiency bonus + your Constitution modifier

Spell attack modifier = your proficiency bonus + your Constitution modifier

Demi-lich's Baby Spellcasting

ROGUE LEVEL	CANTRIPS KNOWN	SPELLS KNOWN	SPELL SLOTS	SLOT LEVEL
3rd	2	2	1	1st
4th	2	2	1	1st
5th	2	3	1	1st
6th	2	3	2	1st
7th	2	4	2	2nd
8th	2	4	2	2nd
9th	2	5	2	2nd
10th	3	5	2	2nd
11th	3	6	2	2nd
12th	3	6	2	2nd
13th	3	7	2	3rd
14th	3	7	2	3rd
15th	3	8	2	3rd
16th	3	8	2	3rd
17th	3	9	2	3rd
18th	3	9	2	3rd
19th	3	10	2	4th
20th	3	11	2	4th

Fueled by hatred

Due to your connection to the Demi-Lich your ability to cast magic has become changed. You can cast spells while raging, and your spell casting ability is Constitution.

Tokens of the Damned

By 9th level, your connection to the lich has deepened. A bracelet appears on your arm to signify the connection. When you end the life of a humanoid with your dagger or eldritch blast you’re able to snatch a token from the departing soul, a sliver of its life essence that takes physical form: as a reaction when a creature you kill with your dagger or eldritch blast, you can cause a Tiny trinket to appear on the bangle on your wrist. The DM determines the trinket’s form or has you roll on the Trinkets table in the Player’s Handbook to generate it. The trinkets are generally silver representations of what was important to the person while they were alive.

You must collect 20 soul trinkets each month, and they disappear in a flash once you have met your quota. You can use soul trinkets in the following ways:

• While you have at least one soul trinket on your person, you can release one to the Demi-Lich early to use a racial ability one additional time per day.
• While you have at least three soul trinkets is on your person, you have advantage on charm saving throws and Wisdom saving throws, for your psyche is bolstered by the life essence within the object.
• While you have 5 or more soul trinkets, you have blindsight to 5 feet. This increases to 10 feet when you have 10 or more soul trinkets, and 15 feet when you have 15 or more soul trinkets.
• While you have 10 or more soul trinkets on your person, when you deal Sneak Attack damage, you do not roll, but deal maximum damage for the sneak attack, roll for the weapon as normal.

Blades of Cantrips

Beginning at 13th, when you use your action to attack, you may cast a cantrip as a bonus action, but only if it would require an attack roll(s). (No Booming blade or the like.) If you have Extra Attack (from multi classing) you can cast one of your cantrips in place of one of those attacks.

Your anger is such that you add your Constitution modifier to your eldritch blast damage rolls.

Master of Shadows

At 17th level you become one with the shadows. You gain proficiency in stealth and your proficiency bonus is doubled for any ability check you make that uses stealth. If you already have expertise in stealth, you instead gain expertise in another skill of your choice.

Moreover, if you are hidden when you make an attack action with eldritch blast you can apply your sneak attack damage to each target you hit but no more than once per target.