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

Pack Performance

FEAT 18

Activity reaction

Prerequisites zoophonia muse

Trigger A creature counteracts or disrupts the spell you're casting.

Requirements You have an animal minion within 30 feet of you.

When you and animals sing together, your words ring even brighter and bolder, cutting through disruptions. The animal assisting you can Stride and Strike the triggering creature. If the attack succeeds, your action isn't counteracted or disrupted.

Pathfinder Howl of the WildORC