The Demons of Infernal Geometry

Chief amongst the servants of the unknowable Outer Dark are the Demons of Infernal Geometry. Sometimes summoned in their lesser form by those who seek to plumb the knowledge the forbidden coldness of beyond the known. Always they take the form of shapes: beautiful, perfect, shapes. Shapes so perfect they are at odds with reality. The imperfection of their very temporary flesh limbs marks it all the worse.

Their flat surfaces are gaping holes to other realities, slabs of cosmos and gateway portals to hells best left unimagined by men, and sweetly dreamed of by the dying gods of cruelties left unspoken. Their curved surfaces the sine wave perfection of vector graphics made for maddening torture by death cult poets. Their greatest incarnations are topographical maps of infernal Bosch paintings spun into psychedelic mandalas of abandoned, sunless worlds- biblical angels inversed.

They see without eyes, and speak your name like a parent. It does not feel good. 

If their eyes do open, they open in fractal time loops, seeing across realities the same way that the eye-tyrants do. Maybe they learned it from them. Maybe they taught each other. Maybe they stole it. They are stealing from you now, now that their gaze is upon you. Their Eye is the  one that Sings the polyrhythmic hymn of the universe’s horrific birth and the blissful pride of its unifying heat death. 

The song is an attack, a disintegration ray on a temporal level. Your parts are being erased from time on a molecular level. There is no physical pain, but the spiritual pain is agony unreal by the world’s standards until you felt it. Your body is a tape deck having its ribbon pulled out between two high-powered magnets, and it knows this. If data is beautiful, then these creatures are the alphanumerical song of your death, your ancestor’s death, and joy of your world’s unmaking. They sing together in a choir. You came from nothing, and the numbers are cleanest if unto nothing you return. It is a soldier of the blackest truth, the calculator of darkest equation. Because in the beginning there was The No-Thing.

And that’s how it liked it.

Lesser Demon of Infernal Geometry

HP: 30, AC as chain, saves on a 13+

Temporal Disintegration: +3 to hit, does 3x the number of party members damage. 

Choir: if 3 or more lesser demons of infernal geometry sing the temporal disintegration together, triple that damage, and apply 10x that number as damage to their XP

Middling Demon of Infernal Geometry

HP: 60, AC as plate, Saves on a 11+

Temporal Disintegration: +6 to hit, does 6x the number of party members in damage. 

Choir: if 6 or more middling demons of infernal geometry sing the temporal disintegration together, deal d6 damage to a random ability score of each party member, and apply 10x that total number as damage to their XP.

Greater Demon Of Infernal Geometry

HP: 80, AC as enchanted plate and shield, saves on a 8+

Choir Master: Greater Demons of Infernal Geometry make Middling and Lesser Demons count as Choirs, and can summon one extra demon of infernal geometry as their action for a turn

Temporal Rearrangement: every time a player goes in combat, roll a d8, on an 8, a Greater Demon of Infernal Geometry may use one of that player’s abilities against another player or monster.

Temporal Disintegration: +8 to hit, does 8x the party’s total level in damage to their XP, in addition roll a d8, on a 1-4 erase notes from your campaign world, on a 5-8 eliminate a magic item in the party at random.