Magical Master Feat 18
Source Pathfinder Secrets of Magic
Prerequisites Magical Adept
Your eidolon gains a bevy of lower-level spells. Choose an innate spell of your eidolon's tradition of each of the spell levels from 1 to 7 in which your eidolon doesn't currently have an innate spell from Magical Adept. Your eidolon can cast each once per day as innate spells.
You can swap these spells at every even level, but your eidolon can never know more than one spell of each spell level 1 through 7
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.