Dungeons & Dragons 5e Classes: The Great Machine

Pact of the Chain: The Great Machine grants a clockwork familiar instead of a familiar of the normal kind. See the Clockwork Mage for more information. Pact of the Blade: The blade of the Great Machine is a thing of clockwork and gears, changing shape as it unfolds for combat. Pact of the Tome: The Great Machine grants no simple book, but instead a pocket-size device filled with cogs covered in arcane script. The warlock knows how to manipulate the small butons and levers on the device to cast each of the cantrips. If spells are added to it via the Book of Ancient Secrets invocation, the Warlock can add new gears instead of pages by the process described.

The following invocations are available to Great Machine warlocks.

Name	Description	Prerequisite
Cloud of Cogs	You can cast Gear Barrage] once using a warlock spell slot. You must finish a long rest before doing so again.	3rd level, Great Machine patron
Heat of the Furnace	You summon up the fires from within. As long as you maintain concentration, your melee attacks do an additional 1d6 fire damage. Attackers within 5 feet of you who hit you in melee take 1d6 fire damage. This heat does not affect any of your gear.	3rd level, Great Machine patron
Voice of the Machine	Spells you cast that charm or frighten creatures overcome the immunity of constructs to being charmed or frightened. Saving throws apply normally.	Great Machine patron

At 1st level, your patron grants you a tiny fraction of its ability to measure and control time. At the beginning of another creature’s turn (friend or enemy), before that creature moves or takes any action, you can shift your position in the initiative order to immediately before that creature. If you haven’t yet taken your turn this round, you do so immediately. If you have already acted this round, you can either move or take one action immediately, but not both. In either case, your spot in the initiative order shifts to this new position. You must complete a short or long rest before using this feature again.

At 6th level, you can call on your patron to grant you uncanny precision. When you miss with an attack in combat, you can choose to reroll the attack with advantage. Once you use this feature, you must complete a short or long rest before using it again.

At 10th level, your thoughts become mechanical and ordered like that of your patron, even if your actions do not. You are immune to psychic damage and your thoughts cannot be read unless you choose to allow it.

The mortal mind is not meant to understand the vast complexity of machine intelligences. Starting at 14th level, you can, as an action, designate a creature you can see within 60 feet of you. It must make a Charisma saving throw against your warlock spell save DC. If it fails, it experiences a taste of your patron’s mind and its place in the great plan of the multiverse. The creature takes 10d10 psychic damage and must make another Charisma saving throw; if the second saving throw fails, the creature is also stunned for 1 minute as it reels from the experience. After using this feature, you must complete a short or long rest before using it again.