# Architect of Ruin
*[illrigger](illrigger.md): Diabolic Contracts*
*Source: The Illrigger Revised*
> [!tldr] Class and Feature Progression
>
> <table class="class-progression">
> <thead>
> <tr><th colspan='8'></th></tr>
> <tr class="class-progression"><th class"level">Level</th><th class"pb">PB</th><th class"feature">Features</th><th class="value">Cantrips Known</th><th class="value">1st</th><th class="value">2nd</th><th class="value">3rd</th><th class="value">4th</th></tr>
> </thead><tbody>
> <tr class="class-progression"><td class"level">1st</td><td class"pb">+2</td><td class"feature"></td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">2nd</td><td class"pb">+2</td><td class"feature"></td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">3rd</td><td class"pb">+2</td><td class"feature"><a href='#Architect of Ruin (Level 3)' class='internal-link'>Architect of Ruin</a></td><td class="value">2</td><td class="value">2</td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">4th</td><td class"pb">+2</td><td class"feature"></td><td class="value">2</td><td class="value">3</td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">5th</td><td class"pb">+3</td><td class"feature"></td><td class="value">2</td><td class="value">3</td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">6th</td><td class"pb">+3</td><td class"feature"></td><td class="value">2</td><td class="value">3</td><td class="value">⏤</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">7th</td><td class"pb">+3</td><td class"feature"><a href='#Hellish Versatility (Level 7)' class='internal-link'>Hellish Versatility</a>, <a href='#Asmodeus's Interdiction (Level 7)' class='internal-link'>Asmodeus's Interdiction</a></td><td class="value">2</td><td class="value">4</td><td class="value">2</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">8th</td><td class"pb">+3</td><td class"feature"></td><td class="value">2</td><td class="value">4</td><td class="value">2</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">9th</td><td class"pb">+4</td><td class"feature"></td><td class="value">2</td><td class="value">4</td><td class="value">2</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">10th</td><td class"pb">+4</td><td class"feature"></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">11th</td><td class"pb">+4</td><td class"feature"><a href='#Submit (Level 11)' class='internal-link'>Submit</a></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">12th</td><td class"pb">+4</td><td class"feature"></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">⏤</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">13th</td><td class"pb">+5</td><td class"feature"></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">2</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">14th</td><td class"pb">+5</td><td class"feature"></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">2</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">15th</td><td class"pb">+5</td><td class"feature"><a href='#Vile Transmogrification (Level 15)' class='internal-link'>Vile Transmogrification</a></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">2</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">16th</td><td class"pb">+5</td><td class"feature"></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">3</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">17th</td><td class"pb">+6</td><td class"feature"></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">3</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">18th</td><td class"pb">+6</td><td class"feature"></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">3</td><td class="value">⏤</td></tr>
> <tr class="class-progression"><td class"level">19th</td><td class"pb">+6</td><td class"feature"></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">3</td><td class="value">1</td></tr>
> <tr class="class-progression"><td class"level">20th</td><td class"pb">+6</td><td class"feature"></td><td class="value">3</td><td class="value">4</td><td class="value">3</td><td class="value">3</td><td class="value">1</td></tr>
> </tbody></table>
^class-progression
## Class Features
### Architect of Ruin (Level 3)
*Architects of Ruin are cool and calculating arcane knights who serve Asmodeus, deploying spells, steel, and subterfuge to win at any cost.*
Asmodeus rules Acheron, the City of Fear. His illriggers scour the timescape, collecting secrets and spells designed to deceive and terrify his opponents. The war he fights against the other archdevils is one of deception and information.
His Architects of Ruin work to make Hell's enemies seem outnumbered and outmaneuvered. These illriggers are skillful spellblades on the battlefield, though some employ tactics such as research, infiltration, and propaganda to play mind games with their quarry. When an Architect of Ruin finally confronts an enemy, the advantage is theirs—they have studied, prepared, and gripped fate within their gauntlet, forcing it to favor them. They hungrily seek the dark arts to arm both themselves and Asmodeus with the impossible.
#### Precepts of Ruin
Architects of Ruin swear an oath to Asmodeus when they join the Order of Desolation. These precepts commit them to destroy Asmodeus's enemies by commanding great magic, causing fear, and sowing distrust.
##### The Battlefield of the Mind
By the time my armies meet yours, you'll be filled with terror and doubt your own strength. I won't have to lift a finger to defeat you.
##### The Proper Secret
Once I know your secrets, I know your weakness.
##### Knowledge Is Power
Lore is as powerful as steel. I learn every detail about my enemy and anticipate their every move, checkmating them before the game even begins.
##### Magic Is Mine to Command
Cunning is also as powerful as steel. I wield the dark arcane arts to manipulate your senses, weaken your resolve, and strengthen my blade. Your soldiers will quake for fear of what dark magics may next cloak my blade.
### Asmodeus's Blessing (Level 3)
When Asmodeus accepts you as an Architect of Ruin, he grants you access to his infernal knowledge. You gain proficiency in one of the following skills of your choice: [Arcana](/3-Content/Rules/skills.md#Arcana), [History](/3-Content/Rules/skills.md#History), [Nature](/3-Content/Rules/skills.md#Nature), or [Religion](/3-Content/Rules/skills.md#Religion).
In addition, you can also read and write the languages granted by your Forked Tongue, instead of only speaking them.
### Spellcasting (Level 3)
As an Architect of Ruin, you access a well of profane magic to cast spells.
#### Cantrips
You know two cantrips of your choice from the Architect of Ruin spell list (presented at the end of this subclass). You learn an additional cantrip from this list at 10th level.
#### Spell Slots
The Architect of Ruin Spellcasting table shows how many spell slots you have to cast your illrigger spells of 1st level and higher. To cast one of these spells, you must expend a slot of the spell's level or higher. You regain all expended spell slots when you finish a long rest.
For example, if you know the 1st-level spell hellish rebuke and have a 1st-level and a 2nd-level spell slot available, you can cast [hellish rebuke](/3-Content/Compendiums/spells/hellish-rebuke-xphb.md) using either slot.
#### Spells Known of 1st Level and Higher
At 3rd level, you know three 1st-level spells of your choice from the Architect of Ruin spell list (presented at the end of this subclass).
The Spells Known column of the Architect of Ruin Spellcasting table shows when you learn more illrigger spells of 1st level or higher. Each of these spells must be of a level for which you have spell slots. When you reach 7th level, for example, you learn one new spell of 1st or 2nd level.
Whenever you gain a level in this class, you can replace one of the illrigger spells you know with another spell of your choice from the illrigger spell list. The new spell must be of a level for which you have spell slots.
#### Spellcasting Ability
Charisma is your spellcasting ability for your spells, so you use your Charisma whenever a spell refers to your spellcasting ability. In addition, you use your Charisma modifier when setting the saving throw DC for a spell you cast and when making an attack roll with one.
<span class='abilityDc'>**Spell save DC**: your proficiency bonus + your Charisma</span>
<span class='abilityAttackMod'>**Spell attack modifier**: your proficiency bonus + your Charisma</span>
#### Spellcasting Focus
You have an unholy symbol, such as an amulet symbolizing your archdevil, a fragment of a blasphemous relic, or a glass orb holding a consecrated drop of archdevil blood. You can use the unholy symbol as a spellcasting focus for your illrigger spells. You must have a free hand to use the unholy symbol, but it can be the same hand you use to perform somatic components.
### Invoke Hell (Level 3)
You gain the following two Invoke Hell options:
### Enervating Spell (Level 3)
When you deal damage to a creature with an illrigger spell of 1st level or higher, you can expend a seal (no action required) and imbue the spell with weakening magic. The target has vulnerability to that spell's damage. If they normally have resistance or immunity to the spell's damage, that resistance or immunity is suppressed for this spell, and the target has vulnerability to the damage instead.
### Spellblade (Level 3)
You can use an action to both make a melee weapon attack and cast an illrigger spell you know that has a casting time of one action.
### Hellish Versatility (Level 7)
Once on each of your turns, you can cast one of your illrigger cantrips in place of one of your attacks granted by your Extra Attack feature.
### Asmodeus's Interdiction (Level 7)
You learn the following additional interdict boons at the noted illrigger levels. Once you learn an interdict boon granted by this feature, you always know it, and it doesn't count against the number of interdict boons you know.
### Submit (Level 11)
When you cast an illrigger spell you know, you can burn two seals on an interdicted creature (no action required) to impose disadvantage on their saving throw against the spell.
### Vile Transmogrification (Level 15)
You uncover two new ways to employ Asmodeus's magic:
#### Regaining Seals
As a bonus action on your turn, you can expend one spell slot to regain a number of seals equal to that slot's level.
#### Regaining Spell Slots
As a bonus action on your turn, you can expend any number of seals to regain a spell slot of a level equal to one-third that number. For example, you can expend six seals to regain a 2nd-level spell slot.
Once you use one of these benefits, you can't use that benefit again until you finish a long rest.