Random Poison Types

To generate a unique poison, follow these steps in order:

1. Delivery: This poison is delivered by its specific method.
2. Strength: Its strength is considered based on its potency.
3. Onset Delay: Determine how much time passes before the effects are felt.
4. Effect: Determine the physiological or mental impact of the poison.
5. Permanence: Determine if the effect is lasting or how it can be reversed.

Or use the generator.

1. Delivery (Roll 1d20)

This determines the method of exposure.

Roll	Method
1–10	Ingesting
11–15	Getting in the blood
16–18	Touch
19–20	Inhaling

2. Strength (Roll 1d10)

This determines the difficulty of the saving throw.

Roll	Potency	Saving Throw Modifier
1–5	Normal	None
6	Very weak	+4 to save
7	Weak	+2 to save
8	Strong	-2 to save
9	Very strong	-4 to save
10	Extremely potent	-8 to save

3. Onset Delay

This determines how long before the poison takes effect.

Onset Time (Roll 1d10)

Roll	Delay Until Effect
1–5	Immediately
6–7	In 1d3 × (see Die Size) rounds, e.g. “2d6”
8	In 1d2 × (see Die Size) hours
9	In 1d2 × (see Die Size) days
10	Indeterminate: 1d8 x 10% chance checked every (see Delay Period)

Die Size (Roll 1d6)

Determines the type of die used for the onset calculations.

Roll	Die	Roll	Die
1	d2	4	d8
2	d4	5	d10
3	d6	6	d20

Delay Period (Roll 1d4)

This determines how often to check to see if the poison takes effect if not determinate.

Roll	Frequency
1	Every Turn
2	Every Day
3	Every 1d4+1 Days
4	Every Week

4. Poison Effects (Roll 1d20)

Roll	Effect
1-5	Reduces Hit Points. Roll 1d8 to determine damage. 1 = 1d6 damage 2 = 1d8 damage  3 = 2d6 damage  4 = 3d6 damage 5 = 3d10 damage  6 = 5d6 damage 7 = 5d10 damage  8 = 5d20 damage Roll 1d6 to determine save result. 1-2 = Save for half 3-5 = Save for none 6 = No save (see Effect Rate).
6-10	Causes death. Roll 1d6 to determine save result. 1-2 = Lose 50% HP instead 3-5 = No effect 6 = No sav.
11-12	Induces sleep. Roll 1d4 to determine duration. 1 = 3d6 rounds 2 = 2d6 turns 3 = 2d6 hours 4 = 1d6+1 days
13-14	Reduces an ability score. Roll 1d6 to determine ability affected. 1 = STR 2 = DEX 3 = CON 4 = INT 5 = WIS 6 = CHA Roll 1d10 to determine by how much. 1-3 = 1 4-6 = 2 7-9 = 1d4 10 = 1d6 Roll 1d6 to determine save result. 1-2 = Save for half 3-5 = Save for none 6 = No save (see Effect Rate).
15-16	Causes a disabling disease. Save vs poison + CON to resist.  Roll 1d8 to determine duration 1-5 = Mild, rest 1d3 weeks 6-7 = Severe, disabled 1d2 weeks then rest 1d2 weeks 8 = Terminal
17-18	Causes confusion. Save for no effect.
19	Causes memory loss to spellcasters. Lose 1d6 memorized spells. Save for no effect.
20	Causes blindness. Save for no effect.

Effect Rate (Roll 1d8)

Determines the frequency or repetition of the effects above.

Roll	Result
1–4	The damage is taken all at once
5	The damage is taken at a rate of 1d6 points per round.
6	The damage is taken at a rate of 1d4d6 points per round.
7	Repeat the effect for 1d6 rounds
8	Repeat the effect for 1d4 × d6 rounds

5. Permanence (Roll 1d10)

Roll	Recovery / Duration
1–6	Hit point damage taken may be healed normally. Ability damage requires a Restoration spell. Other effects resolve normally.
7	Reversed with a Remove Curse spell.
8	Reversed with a Restoration spell.
9	The effects wear off in 1d6 hours.
10	Permanent; cannot be reversed except by a Wish.