Darkvision: The Eidolon has Darkvision out to a range of 60 feet.
Link: A summoner and his eidolon share a mental link allows for communication across any distance (as long as they are on the same plane). This communication is a free action, allowing the summoner to give orders to his eidolon at any time. In addition, magical items interfere with the summoner’s connection to his eidolon. As a result, the summoner and his eidolon share magical item slots. For example, if the summoner is wearing a ring, his eidolon can wear no more than one ring. In case of a conflict, the items worn by the summoner remain active, and those used by the eidolong become dormant.
Share Spell: The summoner may cast a spell with a target of “you” on his eidolon (as a spell with a rang of touch) instead of himself. A summoner may cast spells on his eidolong even if the spells normally do not affect creatures of the eidolon’s type (outside).
Eidolon’s Evolutions:
Improved Damage [Claws]: The damage for this type of attack is increased by one die type.
Improved Damage [Bite]: The damage for this type of attack is increased by one die type.
Pounce: The Eidolon gains quick reflexes, allowing it to make a full attack after a charge.
Limbs [Legs]: The Eidolon gains an additional set of legs.