Living Crucible

Potions affect Cogforged — wild magic-imbued constructs — differently than normal creatures. Where one would typically experience consistent effects, for Cogforged, consuming a potion triggers an unpredictable wild alchemical surge in their magical conduits, resulting in a Wild Alchemical Effect based on the potion’s essences.

Wild Alchemy tables are not necessarily balanced. Cogforged are experimental. That’s part of the flavor.

Alchemical Adaptation

6th-level Cogforged feature

Long years of being a subject of alchemical experiments has caused couple adaptations in your internal structure, making potions and alchemical substances interact with you in strange and unpredictable ways.

Volatile Constitution. Whenever you consume a magic potion, you do not gain its normal effect. Instead, you must roll on the Wild Alchemy Surge table. The result replaces the potion’s effect.

Internal Alchemy. You can harness the unstable magic within you to replicate alchemical processes. During a short or long rest, you can use simple organic materials and water to internally create Alchemical Bases, which last until you finish your next long rest.

Catalyzed Surge. You can expend a use of your Rage to unleash the essences stored within you. When you do so, choose three essences you have, two of which must be of the same type. Then roll on the Major Surge table twice and on the Minor Surge table once. You gain the normal benefits of Rage and the results of all three rolls simultaneously.

• Major Surges: The two Major Surge rolls are determined by the two matching essences. If the rolled results are the same, you may choose any effect from the Major Surge table instead. In any Major Surge effect, the X factor equals your proficiency bonus.

• Minor Surge: The Minor Surge roll is determined by the third, unmatched essence. The X factor in a Minor Surge effect is set by your current environment or state, as defined on each Essence table.

Unstable Nature. The magical interactions produced by this feature are inherently chaotic and experimental. Effects are not designed for balanced combat and can be wildly beneficial, strange, or outright dangerous.

Albedo

Albedo

Your metallic shell glows like polished silver, seams splitting to release beams of sterile light. Frost crawls over your joints as your core hums with clinical precision—before suddenly locking up, gears grinding to a halt.

Major X: Proficiency Bonus | Minor X: Number of allies within 30 ft. of you.

d8	Effect
1	Radiant Shield. Emit a protective aura that grants X AC to allies within 10 ft. for 1 minute.
2	Cleansing Pulse. Remove X conditions from yourself or one ally.
3	Orderly Function. Add X to your next ability or skill check.
4	Unity Beacon. Allies within 30 ft. gain X to all saving throws for 1 minute.
5	Brittle Structure. Your joints seize; reduce your movement speed by half for X rounds.
6	Harmonic Resonance. Spellcasters within 30 ft. have disadvantage on Concentration saves for X rounds.
7	Shattered Reflection. Reflect the next attack; attacker takes damage instead. Then reduce your AC by X until repaired.
8	Overload. Surge of light explodes—take Xd6 radiant damage and become blinded until your next turn.

Nigredo

Nigredo

Your plating blackens as if dipped in tar, shadows leaking from your vents like smoke. Your eyes dim to hollow pits, and a sickly oil drips from your fingers—sometimes pooling into grasping tendrils before retracting violently. Major X: Proficiency Bonus | Minor X: Number of visible enemies within 30 ft. of you.

d8	Effect
1	Shadow Cloak. Become invisible in dim light or darkness for X rounds (ends if you attack).
2	Decaying Touch. Your next attack deals Xd4 necrotic damage.
3	Echo Strike. Your next attack hits twice; the second attack is made at –X to hit.
4	Soul Drain. Steal energy from an ally—deal them Xd8 damage, heal the same amount.
5	Paranoia Protocol. Cannot use or benefit from the Help action for X rounds; distrust all constructs.
6	Rotting Core. Take 1d6 necrotic damage at the start of each of your turns for X rounds.
7	Blackout Field. Gain Xd4 temporary HP by extinguishing X light sources (magical or mundane) within 30 ft.
8	Ruthless Efficiency. Add Xd4 to your next attack roll; must attack the nearest target.

Rubedo

Rubedo

Your body turns furnace-red, heat shimmer warping the air. Embers spit from your mouth, and flames geyser from your seams under pressure. Major X: Proficiency Bonus | Minor X: 2 × PB if below 50% HP, otherwise 1.

d8	Effect
1	Furnace Core. Gain resistance to fire. Add Xd6 fire damage to all your attacks next round.
2	Hasty Movement. Double movement for 1 minute. Then take Xd4 fire damage.
3	Scorching Retaliation. When hit, deal Xd6 fire damage to the attacker.
4	Volcanic Eruption. Create a (X × 10) ft explosion; 1d6 fire damage (Dex save DC 12 for half).
5	Chaotic Surge. Attack nearest target with +X to hit; then become stunned for 1 round.
6	Uncontrolled Flame. Ignite; take 1d6 fire damage each round for X rounds or until doused.
7	Hedonistic Overload. Add +X to all attack rolls for 1 round; take 1d4 damage from reckless actions.
8	Molten Step. Move through enemies; leave a lava trail dealing Xd4 fire damage to any creature starting its turn on it.

Rebis

Rebis

Your metal sprouts pulsing acid veins, leaking corrosive sap. Growths writhe along your limbs, whispering organic intent into your mechanical frame. Major X: Proficiency Bonus | Minor X: Number of all active conditions on enemies in combat.

d8	Effect
1	Regenerative Mechanism. Heal Xd4 HP at the start of each turn for 1 minute.
2	Toxic Defense. When hit in melee, attacker takes Xd4 poison damage.
3	Adaptive Shielding. Gain resistance to one damage type of your choice for X hours.
4	Symbiotic Enhancement. Touch an ally; they gain +Xd4 to their next ability check or saving throw.
5	Overgrowth Protocol. Speed becomes 0 as vines entangle you; escape DC = X × 3 Strength check.
6	Toxic Leak. All creatures within 5 ft. take 1d4 poison damage per round for X rounds.
7	Unstable Mutation. Gain a random beneficial trait (e.g., enhanced senses, extra limb) for X days.
8	Corrosive Drip. Your touch melts through nonliving matter—deal Xd6 acid damage to structures or objects.

Citrinitas

Citrinitas

Your form flickers with golden static, limbs glitching like corrupted clockwork. Arcane code crackles across your surface, sometimes shorting out, sometimes casting shadows of spells. Major X: Proficiency Bonus | Minor X: Number of spells cast within 30 ft. since your last turn.

d8	Effect
1	Spelljack. Mimic the last spell of X-level or lower cast near you. If none cast, you or an ally regain a spell slot.
2	Probability Shift. Reroll one d20; if the new result is lower, take Xd4 psychic damage.
3	Logic Override. Automatically succeed on one INT-based check within X rounds.
4	Illusory Duplicates. Create X illusory duplicates (as Mirror Image). Roll to redirect attacks as normal.
5	Feedback Loop. Take Xd4 psychic damage; suffer disadvantage on INT checks for 1 hour.
6	Glitch. Teleport X × 5 ft. in a random direction (may enter hazards).
7	Temporal Stutter. Act twice next round; lose your reaction and take Xd4 damage afterwards.
8	Null Pulse. Suppress all magic within a X × 10 ft. radius for 1 round.