From Pathfinder Lost Omens Ancestry Guide, which isn't enabled.

Treacherous Earth

FEAT 5

Activity 1 action

Frequency once every 10 minutes

You have the power to shatter the earth into a shape of your devising. You crack the ground beneath you, creating difficult terrain in a 5-foot burst centered on one corner of your space.

Pathfinder Lost Omens Ancestry GuideOGL