Eldritch Blast Starting at 1st level, you can use your action to make a ranged spell attack against a creature or object within 120 feet of you. Your attack bonus for your eldritch blast is equal to your proficiency bonus + your Charisma modifier. On a hit, the target takes force damage equal to 1d10 + your Charisma modifier. At 5th level, the damage increases to 2d10 + your Charisma modifier. This increases to 3d10 + your Charisma modifier at 11th level, and 4d10 + your Charisma modifier at 17th level. To use your eldritch blast, you must be holding an arcane focus. If you are wearing armor that you are not proficient with, you can't use your eldritch blast. An eldritch blast’s appearance varies from Warlock to Warlock. A colored beam or bolt of energy is typical, although some Warlocks’ blasts have more exotic appearances, such as crystalline projectiles, spectral tentacles, or thrown playing cards. The appearance of your eldritch blast is up to you.

Eldritch Invocations In your study of occult lore, you have unearthed eldritch invocations, fragments of forbidden knowledge that imbue you with an abiding magical ability. Blast Shapes Blast shapes are a type of invocation that modifies the function of your eldritch blast. You learn blast shapes separately from the rest of your invocations. When you use your eldritch blast, you can cause it to take the form of one of your blast shapes. You can only use a single blast shape at a time. Eldritch Essences Eldritch essences are another type of invocation that adds additional effects to your eldritch blast. You learn eldritch essences separately from your other invocations. When you deal damage with your eldritch blast, you can use a bonus action to force each damaged target to make a save against one of your eldritch essences. You can use your eldritch essences a number of times equal to your Charisma modifier (minimum of once), and you regain all expended uses when you finish a short or long rest. At 1st level, you learn one blast shape, one eldritch essence, and one other invocation of your choice. Your options for each are detailed at the end of the class description. When you gain certain Warlock levels, you gain additional options of your choice, as shown on the Warlock table. Each shape, essence, or other invocation has a level associated with it, and you can’t learn one of a higher level than your level in this class. Additionally, when you gain a level in this class, you can choose one of the shapes, essences, or other invocations you know and replace it with another that you could learn at that level. Charisma is your spellcasting ability modifier for your invocations. Your Invocation save DC is equal to 8 + your proficiency bonus + your Charisma modifier.

Otherworldly Patron At 1st level, you have struck a bargain with an otherworldly being of your choice. Your choice grants you features at 1st level and again at 6th, 10th, and 14th level.

Cold Silver Starting at 2nd level, your otherworldly nature grants you a resistance to the weapons of mortals. When you take bludgeoning, piercing, or slashing damage, you can reduce the damage taken by 2 + your proficiency bonus. The damage can't be reduced to less than 1. Silver, however, cuts through this resistance. Damage you take from silvered weapons can't be reduced, and you can’t use this feature while your skin is in contact with silver. Once you use this feature, you can't use it again until the start of your next turn.

Fiendish Resilience Starting at 3rd level, you can use a bonus action to call upon your patron to rapidly heal your injuries. For the next minute, you regain hit points equal to one-third of your Warlock level (rounded down) at the start of each of your turns. The effect ends early if you are incapacitated. You can use this feature once, and you regain use of it when you finish a long rest.

Energy Resistance Starting at 9th level, when you finish a short or long rest, you can choose acid, cold, fire, lightning, or thunder damage. You gain resistance to the type of damage that you choose, which lasts until you choose another one. Starting at 15th level, you can choose two damage types instead of one.

Improved Cold Silver Starting at 18th level, when using Cold Silver would reduce the damage you take by less than half, it instead reduces it by half.