Feat: Basic Summoner Spellcasting

You gain the benefits. You gain the Cast a Spell activity. Your key spellcasting ability for summoner archetype spells is Charisma, and they are summoner spells of your eidolon's tradition. You become trained in spell attack rolls and spell DCs of that tradition. You gain a spell repertoire and two cantrips. Each time you gain a spell slot of a new rank from the summoner archetype, add a spell of that rank or lower to your repertoire. Each time you lose spell slots of a particular rank, remove those spells from your repertoire.