Tatsuya Shiba Powers Explained: How Strong Are The Destroyer's Decomposition and Regrowth Magic?

In the world of The Irregular at Magic High School, the protagonist Tatsuya Shiba is a being full of contradictions. He is both a "Weed" with poor practical magic grades, assigned to the Second Course, and also "The Destroyer" possessing the power to overturn the world's military balance. This extreme contrast is the core of his appeal.

What is the truth behind Tatsuya Shiba's abilities? What price is hidden behind his power, referred to as "divine"? This article will deeply analyze Tatsuya Shiba's core abilities, unveiling the mystery of this strongest Magic Engineer.

Innate Divine Authority: Decomposition and Regrowth Magic

The root of all Tatsuya Shiba's abilities lies in the two types of magic he was born with: "Decomposition" and "Regrowth". These two abilities occupy his innate Magic Calculation Area, preventing him from using diverse modern magic like ordinary magicians, yet also granting him power that transcends common sense.

Decomposition Magic

This ability can directly interfere with the structural information (Eidos) of matter and magic, decomposing it into its most basic elements or particles.

Characteristics of Decomposition Magic:

• Disintegrates physical attacks like sturdy tanks and speeding bullets
• Directly dispels magic attacks launched by enemies
• Forms an intangible protective shield, automatically decomposing any threat entering its range
• Serves as both a powerful offensive means and perfect absolute defense

Regrowth Magic

Opposite to Decomposition, "Regrowth" can restore the structural information of things to any state within the past 24 hours. This is not ordinary healing magic, but a higher-dimensional "repair."

The Cost of Regrowth Magic: Whether it's a fatal injury or a destroyed building, as long as a backup of the information body exists, Tatsuya can instantly restore it. However, when using "Regrowth" on others, Tatsuya must bear all the pain the other person experienced from the moment of injury until the completion of the treatment, and this pain is compressed and erupts within an extremely short period.

The Birth of the Destroyer: Strategic-Class Magic Material Burst

If "Decomposition" and "Regrowth" are proof of Tatsuya's individual strength, then the strategic-class magic "Material Burst" is the key that propelled him to the throne of "Destroyer."

Principle of Material Burst Magic: This magic is the ultimate application of the "Decomposition" ability, capable of directly converting matter into pure energy, its principle being equivalent to Einstein's mass-energy equivalence formula (E=mc²).

The Scorched Halloween Incident: During the "Scorched Halloween" incident, Tatsuya merely decomposed one kilogram of matter, releasing energy equivalent to 20 trillion tons of TNT, instantly wiping the enemy nation's combined fleet and its military port off the map. Its power is comparable to or even surpasses nuclear weapons and is difficult to defend against, making him one of the most feared strategic-class magicians by various nations.

Why is He Considered an Irregular? Constraints and Artificial Modification of Abilities

Since he possesses such god-like abilities, why is Tatsuya Shiba rated as an "Irregular"?

Innate Limitations

His innate Magic Calculation Area is completely occupied by "Decomposition" and "Regrowth," preventing him from learning and using modern systematic magic which emphasizes speed and diversity, resulting in poor grades in practical exams at the magic high school.