Summoner's VisageSpell 2
Source Pathfinder Impossible Magic
Traditions Arcane, Divine, Occult, Primal
Cast

Range touch
Target your eidolon
Duration 10 minutes
No one understands you more than your eidolon and vice versa. Using this innate understanding, you transform your eidolon into your identical twin, allowing them to hide their presence or impersonate you to a limited extent. Assuming you are a humanoid, the eidolon gains the humanoid trait in addition to its other traits while it's in this form, as well as any other trait related to your form (such as elf or gnome). Your eidolon gains a +4 status bonus to Deception checks to Impersonate you and can add its level to such checks even if it's untrained.
Although your eidolon looks like you, it doesn't gain any new abilities, and its statistics don't change in any way-the transformation is purely cosmetic. If this transformation reduces your eidolon's size, the eidolon loses any other effects of its larger size, such as any increase to reach. Your eidolon can still use gear only if it has the eidolon trait, which allows eidolons to use it. If necessary, any such eidolon items the eidolon was wearing remain active but change size and shape to reflect what you're wearing.
You can Dismiss the spell to return your eidolon to their original form.
Spell Effect: Summoner's Visage
Heightened (4th) The duration increases to 1 hour.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
ManipulateYou must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.
PolymorphThese effects completely transform the target into a new form. A target can't be under the effect of more than one polymorph at a time. If it comes under the effect of another, the second effect attempts to counteract the first. If it succeeds, it takes effect, and if it fails, the spell has no effect on that target. Any Strikes granted by a polymorph effect are magical. Unless otherwise stated, polymorph spells don't allow the target to take on the appearance of a specific individual creature. If you take on a battle form with a polymorph spell, the special statistics can be adjusted only by circumstance bonuses, status bonuses, and penalties. Unless otherwise noted, the battle form prevents you from casting spells, speaking, and using most manipulate actions that require hands. (If there's doubt about whether you can use an action, the GM decides.) Your gear is absorbed into you; the constant abilities of your gear still function, but you can't activate any items. You lose your Speeds and gain those of the battle form. If a polymorph effect causes you to increase in size, you must have space to expand into or the effect is disrupted.