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From Pathfinder #206: Bring the House Down, which isn't enabled.

Graymist

ITEM 21
Usage worn cape
Bulk L

This black cape flows more like a vaporous liquid than fabric. The cape grants you a +3 item bonus to Stealth checks. When you invest the cape, you either increase your Dexterity modifier by 1 or increase it to +4, whichever would give you a higher value.


Activate Interact
Frequency once per hour
Trigger A creature misses you with an attack
Effect Attempt a Stealth check against the triggering creature's Perception DC. If you roll a success, you're Hidden from that creature until the end of your next turn or until right after you use a hostile action against that creature. If you roll a critical success, you're hidden from that creature until the end of your next turn, even if you use hostile actions against that creature.

Activate Interact
Frequency once per day
Effect With a twirl of the cape, you transform yourself into a puff of gray smoke. You cast Vapor Form on yourself.
Pathfinder #206: Bring the House DownORC