Summon Unicorn

Type: Class
Prerequisite: Healer level 8
When a Healer attains 8th level, the deities recognize her devotion and grant her a Celestial Unicorn Companion as her aide. The Unicorn, a symbol of healing and purity, serves the Healer willingly and unswervingly.
Once per day, the Healer may magically call her companion from the celestial realms in which it resides. The companion immediately appears adjacent to the Healer and remains for 2 hours per Healer level. It may be dismissed at any time as a free action. The companion is the same creature each time it is called, though the Healer may release a particular companion from service to gain a companion of a different kind. Each time the companion is called, it appears in full health, regardless of any damage it may have taken previously.
A Healer of 12th level or higher may select a Lammasu as her companion. Should she do so, the creature gains abilities, as if the character's Healer level was 4 levels lower than it actually is.
A Healer of 16th level or higher may select an Androsphinx as her companion. Should she do so, the creature gains abilities, as if the character's Healer level was 8 levels lower than it actually is.