Any, mostly same as summoner's
- See also: animal companion, familiar, and spirit animal
An eidolon is an outsider linked to a specific summoner. Its close tie to its summoner grants it unique abilities and traits, including a form shaped by its summoner's desires.1
Some eidolons are born of violence and blood.
An eidolon always appears as a fantastical creature and bears a glowing rune that also appears on its summoner's forehead while summoned.1
Until an eidolon is first summoned, it has no physical form or body.2
When the link between an eidolon and its summoner is somehow destroyed, or in some cases when an eidolon is crafted from other outsiders, the eidolon is free to act and roam the Material Plane independently.
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