eidolon

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. An eidolon always appears as a fantastical creature and bears a glowing rune that also appears on its summoner's forehead while summoned. Until an eidolon is first summoned, it has no physical form or body.

Known Eidolons

Lyphyore (Havazhi)
Tee-Kay-Oh (Zip)
Duster (Nitus)
Sal-Man (unknown summoner)
Moldyvort (unknown summoner)