The Modron

Modron are the best

Expanded Spell List

The Modron 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.

Modron Expanded Spells

Spell Level	Spells
1st	shield, grease
2nd	arcane lock, zone of truth
3rd	tiny servant, slow
4th	fabricate, arcane eye
5th	animate objects, wall of force

Axiomatic Mind

You gain proficiency with tinkers tools, arcana, and history. your alignment becomes lawful neutral and can not be changed. you can speak Modron. you are compelled to follow all of Primus's directives and can not go against them willingly or unwillingly. 

Probability Distribution

At 1st level, you gain the ability to channel the absolute order of Mechanus.  Whenever you make an attack roll, an ability check, or a saving throw, you can forgo rolling the d20 to get a 10 on the die. You can use this feature a number of times equal to your Charisma modifier (a minimum of once). If a creature utilizes a Luck point on that same result, the abilities cancel each other out, and you roll to determine the result as normal. You regain any expended uses when you finish a long rest.

At 6th level, this ability extends to any attack roll, ability check, or saving throw made by individuals around you.  As a reaction, you can impose a die result of 10 to what would have been a d20 roll made by any creature within 60 feet of you.  As above, if a creature spends a Luck point on the same result, the abilities cancel each other out and the result is determined as normal.  You only may use Probability Distribution once per round, either for yourself or to affect someone else.  

In addition, beginning at 6th level, you regain all of your expended uses of Probability Distribution when you finish a short or long rest.

Paralysis Gas

Starting at 6th level, your link to Mechanus and the Modron that inhabit it allows you to produce the Pentadrones iconic paralysis gas. As an action you can exhale a 30-foot cone of gas. Each creature in the area must succeed on a constitution saving throw against your warlock save DC, or be paralyzed until the end of your next turn. Once you use this feature you cannot use it again until you take a short or long rest.

Modron Resistance

you become immune to the charmed and frightened conditions, and have advantage on saving throws against mind-altering effects.

Modron March

Starting at 14th level, 

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