Arthur Leywin’s Quad-Elemental Magic: The Full Breakdown (TBATE)

If you’ve spent any time reading The Beginning After the End, you already know Arthur Leywin isn’t your average overpowered protagonist. Sure, on paper he’s stacked—reincarnated king, genius-level intellect, absurd growth rate—but what really makes him stand out (at least to me as an anime fan) is how earned his power feels. His quad-elemental magic isn’t just a flex—it’s a system he understands, experiments with, and constantly refines.

Let’s break down why Arthur’s elemental mastery hits different—and why it’s one of the most satisfying power systems in modern fantasy.

The Idea of a Quad-Elemental Mage (And Why It’s So Rare)

In most fantasy worlds, characters are lucky if they can control one element well. In TBATE, that rule is even stricter—your affinity is basically locked by birth.

Arthur breaks that system entirely.

Because of his past life as King Grey, he approaches mana like a scientist rather than a student. Instead of waiting for his “awakening,” he starts meditating as a literal baby, forming a mana core earlier than anyone else.

That early start lets him sync with all four base elements:

• Fire – raw destruction and pressure
• Water – adaptability and control
• Earth – defense and structure
• Air – speed and precision

But here’s the thing: it’s not about having four separate toolkits. It’s about combining them mid-combat.

• Boosting fire intensity using air to increase combustion
• Merging earth and water into reinforced defensive structures
• Enhancing sword strikes with air-based acceleration

That synergy is what makes Arthur feel fluid, not just powerful.

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Deviations: Where Arthur Becomes Truly Dangerous

Base elements are just the foundation. The real power comes from deviations—advanced forms of elemental control that very few mages ever achieve.

1. Lightning (Air Deviation)

This is Arthur’s most iconic ability. By pushing air particles to extreme speeds, he generates electricity and turns it into both an offensive and enhancement tool.

• Internal Lightning – boosts reaction time and nervous system speed
• External Lightning – destructive ranged attacks capable of overwhelming enemies instantly

Techniques like Thunderclap Flash feel fast, explosive, and almost unfair in combat.

2. Ice (Water Deviation)

Arthur doesn’t rely on traditional water manipulation. Instead, he focuses on temperature control, using ice in highly tactical ways.

• Freezing terrain to limit enemy movement
• Creating weapons instantly during battle
• Controlling space and pacing through environmental effects

It’s less flashy than lightning but extremely effective.

3. Gravity (Earth Deviation – Rare)

This is one of Arthur’s most underrated abilities. Gravity manipulation allows him to influence weight and pressure in combat.

• Pinning enemies to the ground
• Increasing the force of physical attacks
• Disrupting movement and balance

While not used as frequently early on, its potential is massive.

Realmheart Physique: The Game-Changer

Arthur’s connection to the dragon Sylvia unlocks the Realmheart Physique, a transformation that fundamentally changes how he interacts with mana.

In this state, Arthur gains:

• The ability to see mana particles directly
• Spell disruption by interfering with mana flow
• Near-instant casting without traditional buildup

Instead of simply increasing power, Realmheart gives Arthur complete control over magical interactions, making him incredibly difficult to counter.

The Magic Swordsman Factor

Arthur isn’t just a mage—he’s a hybrid fighter who blends close combat with magic seamlessly.

His combat style includes:

• Burst Step – explosive movement for extreme speed
• Mana Rotation – continuous flow of mana for attack and recovery
• Weapon enhancement through mana channeling

When using weapons like Dawn’s Ballad, he merges physical and magical damage, creating attacks that are difficult to defend against.

Comparison with Other Top Mages

The biggest difference is adaptability. Arthur doesn’t rely on a single style—he evolves during combat.

The Shift: From Mana to Aether

As the story progresses, Arthur loses his mana core and transitions to Aether manipulation, a power that goes beyond elemental control.

With Aether, he can influence:

• Space
• Time
• Existence itself

While it seems like a loss at first, his experience with quad-elemental magic gives him the precision and discipline needed to master this new power.

Quick Thoughts

• Most iconic element: Lightning
• Most underrated ability: Gravity manipulation
• Strongest aspect: Elemental synergy

Final Take

Arthur Leywin isn’t just powerful—he’s a well-developed character whose strength comes from understanding and mastering his abilities. His quad-elemental system works because it’s logical, flexible, and constantly evolving.

That combination of intelligence, adaptability, and raw power is what makes him one of the most compelling protagonists in modern fantasy.