Targeting Companions and Eidolons

Parent page Book of Unlimited Magic

Some spells in this chapter can affect the caster's companion or eidolon. When “companion” is used in a stat block, it refers to animal companions, familiars, and future types of companions—such as construct companions—but not eidolons. Some spells are even more specific. For example, if the spell says, “Targets your familiar,” you could cast it only on a familiar, not other kinds of companions. If you Cast a Spell that can benefit only a type of creature you don't have, such as Casting a Spell that can target only an eidolon when you don't have an eidolon, the spell does nothing.

If the spell would affect an ability the creature doesn't have, the spell doesn't give the creature that ability unless the spell says it does.