Methane Flue

Stealth DC 28 (expert) to hear hissing gas

Disable Survival DC 28 to dig around the vent in a way that diffuses the fumes

Flame Spurt [Reaction]

Level 8 · Complexity Simple

Stealth DC 28 (expert) — (expert) to hear hissing gas

Disable DC 28 — dig around the vent in a way that diffuses the fumes

Trigger A creature moves within 5 feet of the flue

Effect A fiery geyser of flaming gas explodes from the ground. Creatures within 5 feet of the flue take 4d10 fire damage (DC 30 basic Reflex save); creatures that fail the save also take 4d10 persistent fire damage.