Miresoul Feat 1
Source Pathfinder Lost Omens: Ancestry Guide
You have a connection to the muddier denizens of the Plane of Earth from its border with the Plane of Water, and your elemental lineage manifests as clay or mud, reflecting that bond. Your body's mudlike quality makes it easy for you to compress and squeeze yourself through smaller areas. You gain the trained proficiency rank in Acrobatics. If you would automatically become trained in Acrobatics (from your background or class, for example), you instead become trained in a skill of your choice. You gain the Quick Squeeze skill feat.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
OreadA type of geniekin descended from a being from the Plane of Earth.