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From Pathfinder Howl of the Wild, which isn't enabled.

Natural Conduit

FEAT 4
CONCENTRATERANGERSPELLSHAPE
Activity 1 action
Prerequisites warden spells
Requirements You have line of effect to your animal companion or another friendly animal within 60 feet.

You can use an animal as a conduit for your magic. If the next action you use is to Cast a Spell that has a range, the spell uses the animal as its origin point.

Pathfinder Howl of the WildORC