https://worldbuilderblog.me/2016/07/14/common-potions/
Potion Common
This clear oil reeks of vanilla and can be poured over the body of one Medium or smaller creature. Applying the oil takes 1 minute. Once applied, the creature can phase through one wall or object up to 5 feet thick provided it does so within 1 hour of applying the oil. If the creature ends its turn in an object, it takes 5 1d10 force damage and is pushed out of the object in a direction of the GMs choosing. Once the creature phases through one object, the oil has no further effect.
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