Amazing Pop-up Book
Goblin wizards invented the amazing pop-up book to store their spells without written words, though the tradition has been spreading to illusionists from other cultures. These grimoires have colorful covers and open to reveal three-dimensional scenes illustrating various spells. Goblins delight in constructing the books just right so a terrifying creature, like a horse or dog, pops up toward the reader each time a page is turned.
Activate ◇ (concentrate, spellshape)
Frequency once per day
Effect If your next action is to cast an illusion spell prepared from this grimoire that creates illusory terrain or creatures, such as Mirage, you draw forth the pop-up scene. If a creature succeeds, but doesn't critically succeed, at a saving throw to disbelieve the illusion, then just as their mind recognizes the illusion, a startling—though obviously false—illusion pops up somewhere unexpected in their field of vision, visible to only them, dealing mental damage equal to the spell's rank.
Traits
Spellbooks are useful tools for any magic user to write down incantations and runes of power, but where most spellbooks are nothing more than ink on parchment, grimoires have absorbed the magic of the spells within—magic that knowledgeable spellcasters can use to augment their spells.
Effects and magic items with this trait involve false sensory stimuli.
Something with the magical trait is imbued with magical energies not tied to a specific tradition of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.