Eternal Boost Feat 20
Source Pathfinder Secrets of Magic
Your link with your eidolon is so intense that you continuously reinforce its abilities. You are permanently Quickened; you can use your extra action only to cast boost eidolon or reinforce eidolon.
While in exploration mode, you can declare that you are also continually casting boost eidolon or reinforce eidolon even while using a different exploration activity. If you do, even before your first turn in a combat encounter, that cantrip is active as if you had cast it on your previous turn.
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.
SummonerThis indicates abilities from the Summoner class.