pf2e.fyi
From Pathfinder Lost Omens Shining Kingdoms, which isn't enabled.

Primal Guardian

FEAT 8
ARCHETYPE
Archetype Wylderheart
Prerequisites Wyldsinger

You grow in power as a guardian of nature. You learn either the Elemental Sheath or Vicious Howl focus spell.

Special You can take this feat a second time, gaining the focus spell you didn't gain the first time.
Pathfinder Lost Omens Shining KingdomsORC