Highlights

  • Rimuru Tempest unleashes incredible rage after Shion’s death, using devastating attack Megiddo on 10,000 strong army.
  • Megiddo technique manipulates physics, not magic, making it efficient and impossible to block with magical defenses.
  • Armageddon-inspired Megiddo named after real-life location linked to final battle between good and evil.



That Time I Got Reincarnated As a Slime is available for streaming on Crunchyroll.

In the eventful second season of That Time I Got Reincarnated As a Slime, Rimuru Tempest was angered by a surprise attack orchestrated by the Kingdom of Falmuth in collaboration with the Western Holy Church. During this attack, Otherworlders launched an onslaught upon the citizens of Tempest, killing several, including Rimuru’s loyal servant, the ogre Shion.

Her death incited an incredible rage within Rimuru, who set out to punish the offenders, unleashing a devastating wide-scale attack that killed an army 10 000 strong in a matter of minutes. What is Megiddo, and what makes the technique so incredibly powerful?

The Slime King’s Rage

Rimuru’s Awakening To Demon Lord

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I won’t let a single one of you escape… Die. May the anger of the gods sear through your very souls. Megiddo – Rimuru Tempest

Currently, within the That Time I Got Reincarnated As a Slime universe, a number of Demon Lords exist. In order for an individual to become what is called a “True Demon Lord”, certain conditions must be met; such as a ceremony known as a “Harvest Festival”. Prior to meeting these conditions, they are known as Demon Lord Seeds, and at some point, they are required to “germinate”, evolving from their past selves into True Demon Lords. Numerous human souls are required for such a ceremony, 10,000 to be exact; although, the souls of any salient beings should suffice, and the quality of the souls in question have an effect on the exact number of souls required for the Harvest Festival to be successful. Once the seed is germinated, the initiation begins, and the individual in question is put into a deep sleep for several days as their evolution begins. Once complete, the individual gains incredible power, a change in their physical and psychological makeup, among other effects. After witnessing the carnage that took place in Tempest after the attack, a furious Rimuru waged a solo attack upon the invading army, making use of a powerful attack known as Megiddo – God’s Wrath.


The Wrath of God

Gathering 10 000 Souls

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Megiddo is described as an instance of Physics Magic – a type of magic created by Rimuru which manifests physical attacks rather than those powered and perpetuated by magic, making them effective against magical defenses. Using Spirit Magic to control water droplets, Rimuru uses the technique to form these droplets into lenses used to focus powerful beams of light, much like a magnifying glass focuses the light from the sun. What makes Megiddo a truly terrifying technique is the fact that the aspect of the attack that causes damage isn’t at all derived from, or created by magicules, making it incredibly efficient when it comes to the conservation of magic. The beams of light are simply a manipulation of physics, making the attacks impossible to block with magical means, although they can be impeded by time of day, and one who understands how it works (and realizes the incoming attack) could scatter particles of various kinds to disrupt the steady beams of light, although this kind of intervention is unlikely.


The technique’s name is taken from a real-life location, Tel Megiddo (Har Megiddo), a place regarded as the location of the final battle between good and evil in Christian theology. The English word “Armageddon”, used to describe this fabled final battle, is actually derived from this Hebrew word and has come to be used in the context of any end-of-world scenario, although, the cultural relevance of the word sees it having multiple origins rather than just the one. The Greek word “harmagedon” is a transliteration of the Hebrew word, appearing just once in the Greek New Testament. The “Megiddo” part of the name means “place of crowds”, which is relevant to the appearance of the name in That Time I Got Reincarnated As a Slime as it is used to completely annihilate an army 10,000 strong.



Are There Variants?

Megiddo Revised

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In the That Time I Got Reincarnated As a Slime: How to Spend a Certain Vacation side story, after heated discussion with Veldora, Rimuru makes use of an improved version of Megiddo to recreate some of the techniques from the 1987 manga, 3×3 Eyes, created by Yuzo Takada. The techniques interpreted by Rimuru are two forms of Beast Magic, the Koan-Yaa and the Chin-kū. With the refraction of beams of light, Rimuru is able to use Megiddo in conjunction with his Demon Lord’s Haki to create afterimages of a three-headed dragon, and with augmentation from Haki, the resulting attacks deal more than just physical damage. As seen towards the end of the second season of That Time I Got Reincarnated As a Slime, 3×3 Eyes is one of Veldora’s favourite manga, and if the Storm Dragon asks for it enough, even a weapon of mass destruction like Megiddo can be turned into a toy.