Phase Out
Feat 6
Source Pathfinder Impossible Magic
Prerequisites your eidolon is a phantom
Your eidolon phases out of reality slightly, gaining resistance to all damage (except force, spirit, and vitality) equal to half your level. They're not incorporeal, but can't use Strikes or actions that require a fully physical form, such as [/act grapple], [/act reposition], [/act shove], or [/act trip].
Your eidolon can Dismiss this effect to return to their normal form.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
EvolutionFeats with this trait affect your eidolon instead of you, typically by granting it additional physical capabilities.
SummonerThis indicates abilities from the Summoner class.