Miasma (PSR Supplement)

**PSR** is an alternate ruleset compatible with most 5e content.
System Differences The Basics Time Shifts Phases The d20 Ability Check Ability Scores Strength Dexterity Constitution Knowledge Perception Charisma Saving Throws Skills Carry Slots	Encounters Group Turns Round‑Table Turns Staggered Turns Your Turn Move Action Bonus Action Reaction Making an Attack Unarmed Strike Sunder Defense Cover	Hit Points & Damage Temporary Hit Points Massive Damage Damage Types Max Damage Other Dangers Defeat Dramatic Death Common Hazards Extreme Climates Conditions Downtime Downtime Trading Downtime Enterprise	Items Goods & Currency Material Goods Weapons Improvised Attire Shields Tools Gear Attunement Objects Damaging Objects Hauling Objects Vehicles Artillery NPCs Mount Cohort Stat Blocks Vulnerability, Resistance, & Immunity Special Senses

Miasma

Miasma is an extreme climate. Miasma is an area of patchy foul-colored fog filled, often with flying insects. It is particularly common in swamps or polluted urban areas, and in some cases it can stretch for miles.
At the end of each phase or shift you spend in miasma, there's a chance you must succeed on a mark 10 Grit save or become Poisoned until you either finish a shift of camping or a day of downtime. If already Poisoned this way when you fail this save, you instead lose a carry slot.
You needn't make this save if any of these apply:

You have resistance or immunity to poison damage, or to the Poisoned condition.
You have no need to breathe.
You are acclimated to miasma.

Miasma (PSR Supplement)

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Miasma

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