The Convocation

Your patron isn't simply one creature, but it is instead a collection of eternal souls that debate and change the fates of the multiverse as a collective council. The ideals of the convocation are as diverse as the personalities of its council members, so appealing to all members unanimously is an extremely difficult task, however it generally strives to instill an order to the chaotic nature of the world. Some of the most dedicated followers have been sworn into the ranks of the convocation at the time of their passing, including Mas'tas the Judge, and Vernon Prickshire the Lawbearer.

Expanded Spell List

The Convocation 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.

The Convocation Expanded Spells

Spell Level	Spells
1st	command, sanctuary
2nd	silence, zone of truth
3rd	daylight, speak with dead
4th	divination, compulsion
5th	commune, mislead

Call To Order

Starting at 1st level, your patron grants you the ability to demand the attention of others. As an action, you can cause all creatures within a 20-foot cone cast from yourself to make a Constitution saving throw against your warlock spell save DC. Any creature that fails their saving throw is stunned until the end of your next turn.

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

Desperate Appeal

Starting at 6th level, you can plea to the council to potentially change their decision. When a creature within 60 feet of you makes an attack against you, an ability check or saving throw, you may use your reaction to force them to reroll their result. The target must use the new result, regardless of whether it was higher or lower than what they rolled previously. 

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

Silver Tongue

Beginning at 10th level, your patron bestows upon you the knowledge and guile required to make your case. You gain expertise in the persuasion skill if you do not already have it. Additionally, once per long rest when you cast a spell that has a verbal component, you may increase the DC of that spell by half of your proficiency bonus (rounded down). If this spell requires multiple saving throws as per its effects (for example, contagion or dominate person), this ability is only applicable to the first saving throw made for that spell, and not for any subsequent saving throws for that spell.

Final Verdict

Starting at 14th level, you can beseach a final decision from the council on a target of your choosing. Once per long rest, as an action you may roll a d100 and consult the section below:

01-05: Your patron has found you to be improper in your delivery. You take 1d6 psychic damage for each number below 6 that you rolled (e.g. 05 is 1d6, 04 is 2d6, 03 is 3d6 etc.)
06-15: Your patron has noted your case, but are deadlocked into inaction. This has no effect.
16-35: Extradimensional shackles spring forth from around the target and bind them. The target must make a STR saving throw against your warlock spell save DC. On a failure, they are rooted to the ground for 1 minute. While rooted, their speed becomes 0 for the duation of the effect. The target may make a STR saving throw at the end of each of their turns, ending the effect early on a success.
36-50: A bolt of green eldritch lightning strikes down. The target must make a DEX saving throw against your warlock spell save DC, taking 10d6 lightning damage on a failure, or half as much on a success.
51-65: Your patron bangs their gavel to strike fear into your target's heart. The target must make a INT saving throw against your warlock spell save DC. On a failure, they take 10d6 psychic damage and become frightened of you for one round. On a success, they take half as much damage and are not frightened.
65-85: Your patron attempts to force your target into submission. The target must make a WIS saving throw against your warlock spell save DC. On a failure, the fall under the effects of a dominate monster spell for one round. This spell does not break concentration on any other spell that you are concentrating on, however you must still make concentration checks after taking damage or if you cast another concentration spell.
86-95: As above, except the effect lasts for three rounds.
96-00: Your patron has delivered a terminal verdict. The target must make a CON saving throw against your warlock spell save DC. On a success, the target takes 50 points of damage. On a failure, the target immediately drops to 0 hit points.