2011-09-26, 08:46 PM (ISO 8601)
Re: Simple Q&A Pathfinder (By RAW) I
A. 40. The evolution applies to a single attack.
Originally Posted by Noblesse
"Reach (Ex): One of an eidolon's attacks is capable of striking at foes at a distance. Pick one attack. The eidolon's reach with that attack increases by 5 feet."