Feat: Ranged Combatant
Spines, flame jets, and holy blasts are just some of the ways your eidolon might strike from a distance. Your eidolon gains a ranged unarmed attack with a range increment of 30 feet that deals 1d4 damage and has the magical and propulsive traits.
When you select this feat, choose a damage type for the attack: acid, bludgeoning, cold, electricity, fire, piercing, slashing, spirit, vitality, or void.