Shadow conjuration

Shadow conjuration, also known as shadow monsters, was an illusion spell that created semi-real duplicates of lesser conjuration spells.

Effect
The spell drew energy from the Plane of Shadow in order to create a semi-real duplicate of any conjuration spell of lesser power from the subschools of summoning or creation.

If the victim recognized the illusion, the shadow energy was a lot less effective than the duplicated spell. It was always less effective on objects as objects couldn't believe in the first place.

The spell also had a greater version that allowed the duplication of stronger spells and was more powerful, even when seen through as an illusion. An even stronger version of the spell was the shades spell.

Components
Shadow conjuration used verbal and somatic components only.

History
The spell was attributed to Netherese arcanist Shadow in -588 DR and was originally called Shadow's monster.