Grimoire, Book of Magic¶
Tensura Nightmares reference Ultimate Skills

At a glance
A magic-focused Ultimate for accelerated learning and knowledge sharing; its source reports incomplete actives.
Ultimate Skills · 1.21.1 reference build
How to obtain
Server build match pending. Reference: Nightmares 1.0.3.2.8-neoforge-1.21.1.
Version and source limits
This skill is registered in the reference release. The installed version and server configuration have not yet been matched. Requirements and effects describe the cited wiki revision, not verified server behavior.
The upstream article is incomplete; missing effects or unlock conditions are not assumed.
Source-described obtainment methods:
- Other: Master 20 aspecutual magics, Thought Acceleration, Demon Lord Haki, Universal Perception, Chant Annulment, Analytical Appraisal
- Reach 300k Magicules, Have 15000 humanoid kills (Orc, Dwarves, Lizardfolk, Goblins and the Humans) Have no other ultimate skill
An obtainment method is separate from a skill’s MP cost. Check all conditions; a listed route is not a guaranteed starting roll.
Usage
Passive
- [Passive, In Slot] Parallel Processing - Increases the amount of Learned Points and Mastery Points gained when learning/using Skills, Magic, Battlewill, and Arts by 14 (15 Total). The user can also cast more than one spell at a time.
- [Passive, True] All of Creation - The user instantly learns all Aspectual Magic. The user instantly learns all Recipes.
- [Passive, Toggled] Chant Annulment - For Magic, casting becomes instant. User will be able to cast magic even when air level is under max or silence effect is active. Enchantment particles are also reduced.
Active
- [Active, Press] Knowledge Browsing - The user opens a menu containing a list of all the skills the target has learned. The user can use this to learn Resistances, Nullifications or Magics from the target.
- [Active, Press] Concept Sharing - The user opens a menu containing a list of all the skills they have learned. The user can use this to teach Resistances, Nullifications or Magics to the target. If the target has Mastered Holy-Demonic Inversion, this instead shares the user's series of Magic Knowledge with the target, to evolve Holy-Demonic Inversion into 「 Necronomicon, Book of Magic 」
Source and licensing¶
Acquisition and media reviewed against the live source on September 29, 2026. Text revision details below retain the original import provenance; any later corrections are identified in this article.
Tensura Nightmares reference adapted from Grimoire on the Tensura Reincarnated Nightmares Wiki (revision 2931, modified 2026-09-05T13:11:51Z). Adapted text is available under CC BY-SA 4.0.
Original TSR skill artwork; an illustrated interpretation, not an in-game icon.