Ich sehe grade das wir Resist Energy 20 von Rumar bekommen haben, war das bereits zu den Attacken des Eidlons aktiv? Wenn ja würde ich die AoO doch nehmen.
Und damit du es nicht raussuchen musst: Immunity Evolution; 2 Points
An eidolon’s body becomes extremely resilient to one energy type, gaining immunity to that type. Pick one energy type: acid, cold, electricity, fire, or sonic. The eidolon gains immunity to that energy type. This evolution can be selected more than once. Its effects do not stack. Each time it applies to a different energy type. The summoner must be at least 7th level before selecting this evolution.