Digimon: How Powerful Is Gallantmon’s Lightning Joust ? Calculating True Power

Gallatmon in Digimon Tamers Episode 36

During the Deva saga in Digimon Tamers, a confrontation takes place between Beelzemon and Gallantmon. The battle is intense enough to cause destruction throughout the realm of the Digimon Sovereigns. Among the most notable moments is Gallantmon’s Lightning Joust, which triggers a massive explosion and generates an earthquake powerful enough to displace the ground itself.

But how powerful is this attack? Does it stand on par with other Mega-level Digimon from different seasons? Let’s attempt to answer that by providing a reasonable estimate, as we usually do on the blog.

Size Estimation

To determine the size of the explosion — or at least an approximation — we must scale it using pixel measurements from the scene, due to the lack of official information about the dimensions of the locations shown.

First, we establish the size of the bridge by scaling it to Arimon’s height, which is listed as 7 meters tall according to Digimon size comparisons.

Digimon Tamers Episode 33

Antylamon = 7 meters = 390 px

Bridge door = 640 px = 11.5 meters

Using this bridge measurement, we can determine the height of the building, using the door as reference since both share the same height.

Digimon Tamers Episode 34

Door height: 11.5 meters = 30 px

Building height: 395 px = 150 meters

Now we determine the explosion’s diameter using the building as reference

Digimon Tamers Episode 36

Building height = 236 px = 150 meters

Building base = 440 px = 280 meters

Fireball size = 1010 px = 641 meters
(This represents only the visible portion; the actual explosion diameter may be 700 meters or greater.)

Fireball area ≈ 322,705 m²

Fireball duration = 0.04 seconds

With the explosion’s size estimated, we can now move on to calculating its yield.

Yield Estimation

To establish a reasonable range, we will use different approaches.

For a fireball with a radius of 320.5 meters, applying the Sedov–Taylor solution (as used in previous posts, in Wargreymon’s Terra Force), we obtain:

E = 1.2 × (320.5)⁵ / (0.04)²

E ≈ 2.53 × 10¹⁵ joules ≈ 561 kilotons of TNT

This result is based solely on the fireball’s size. However, it does not account for the second major factor: the earthquake, which was powerful enough to generate ground uplifts of several dozen meters. Since part of the energy was transmitted into the ground, producing massive fractures, we must estimate that component as well.

Ground Displacement

To evaluate the yield of an impact of this magnitude, the most appropriate method is to calculate the mechanical work required to displace that mass of earth and the associated seismic energy generated.

Because no crater is visible, we assume the energy was converted into elastic deformation and gravitational potential energy (uplift and fracturing). We will therefore apply the kinetic energy formula, as the ground is shown rising at high speed.

First, we determine the displaced mass, using an average granite density of 2,500 kg/m³.

Digimon Tamers Episode 36

Using the building as reference to measure the ground uplift:

Building height = 236 px = 150 meters

Ground elevation = 95 px = 60 meters

Time = 0.2 seconds (for the rise and fall)

Velocity = 60 / 0.2 = 300 m/s (almost approaching the speed of sound at 343 m/s)

Next, we determine the mass:

m = (π × 320.5² × 60) × 2,500

m ≈ 5.47 × 10¹⁰ kg

Now we calculate the energy:

KE = 0.5 × 5.47 × 10¹⁰ × (300)²

KE ≈ 2.54 × 10¹⁵ joules ≈ 607 kilotons of TNT

Total Energy

Adding both results:

Total ≈ 5 × 10¹⁵ joules ≈ 1.21 megatons of TNT

This is a fairly reasonable outcome that aligns with the series’ internal dynamics and maintains power scaling consistency. Megagargomon, for example, is officially stated to fire megaton-scale missiles. Additionally, Gallantmon used this attack multiple times during the fight with Beelzemon — and this is not even his most powerful technique.

Therefore, his overall power level remains considerably high, especially when taking into account the Digital Hazard mark, which grants him the potential to destroy the Digital World itself.

Conclusion

Based on fireball scaling and seismic displacement, Gallantmon’s Lightning Joust reaches an estimated yield of roughly 1 megaton of TNT. This places the attack firmly within megaton-class destructive power, consistent with established Mega-level scaling in Digimon Tamers.

Far from being an outlier, the feat reinforces Gallantmon’s high-tier status — especially considering he unleashed it multiple times and still possesses even greater latent power through the Digital Hazard.

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