Summoning

Summoning is used to bring an eidolon companion into the fray with you, as well as call forth objects such as water or pools of acid
Can be used to summon a commandable companion whose power is based on your magic.
Can bring forth things such as water, grease, acid, etc. These are not used to attack, but to create terrain effects.

Description

A Summoner is someone to calls into being various semi-permanent items and creatures. Most Summoners have and Eidolon that serves them faithfully in battle or life. (Primary only)
When creating an Eidolon you may spend skill points equal to 3 times your magic skill with the skill cap being one less than your magic skill, minimum one. You must also choose a type for your eidolon, such as Fire, Water, Earth, Air, Psychic, Shadow, Light, or Martial. Eidolons also get a number of Stunts and Fate Points equal to half your magic skill level. . Eidolons also get a number of Stunts and Fate Points equal to half your magic skill level. Eidolons may not have ranks in magic or chemistry. If your Eidolon uses ranged attacks, such as a fire bolt, use the shooting skill. They will also have a total of 3 aspects, a high concept, a relationship to you, and a trouble aspect. If an eidolon dies in combat, they are simply banished for one day, after which they may be summoned again using a fate point. 
Summoners can also create terrain effects and defend with their magic skill.