TenSura: 7 Strongest Ultimate Skills, Ranked

The following contains heavy spoilers for That Time I Got Reincarnated as a Slime.

The world of That Time I Got Reincarnated As a Slime is filled with detailed history and fantastical elements. A key part of this world is the concept of ‘Skills.’ Similar to abilities in role-playing games, Skills in the series are essentially a system that allows characters to activate special powers. This means a Skill is a unique ability that lets someone perform supernatural feats, create unusual effects, or unlock hidden potential.

In That Time I Got Reincarnated As a Slime, characters possess unique abilities called Skills, and the effects of these Skills are known as Authorities. These Skills differ in power, how they’re activated, and where they’re located within the user’s body – whether in their physical form, spirit, astral body, soul, or core. The most potent Skills reside within the user’s soul. Skills come in different types, with Ultimate Skills being the strongest. These rare abilities are powerful enough to even alter the rules of the world. Let’s explore the 7 most powerful Ultimate Skills in the series.

7. Hamiel

Hamiel, a powerful new ability, emerged when the Angelic Skill Haniel combined with the mechanics of another skill, Astarte. Currently, very little is known about Hamiel’s capabilities.

Even in its initial form, the Skill Haniel offers a good balance of attack and defense. It allows the user to anticipate and evade enemy attacks, turn elemental weaknesses into strengths, and convert offensive power into defensive power – and back again. Additionally, Haniel automatically heals injuries, making any fight with its user a long and exhausting struggle.

6. Satanael

Satanael, a powerful skill from the Seven Deadly Sins, is incredibly effective due to its core ability: it allows the user to channel their anger and absorb Magicules – the fundamental particles of energy in the world of That Time I Got Reincarnated As a Slime – at an astonishing rate. By forcing Magicules from the air to interact with those within their own body, the user can quickly replenish their energy.

I’ve been observing this ability, and it’s truly remarkable. It seems to constantly recharge the user, letting them keep fighting no matter how much punishment they take. What’s even more incredible is that it apparently works even when time is frozen – in that brief pause called the Stopped World. Since everything normally stops moving when time stops, the fact that this ability keeps functioning, requiring particle movement, is what makes Satanael such a powerful Ultimate Skill. It’s unlike anything I’ve seen before.

5. Beelzebuth

Beelzebuth, evolved from the Gluttony skill, is one of Rimuru’s strongest abilities. It functions like a black hole, allowing Rimuru to absorb anything – objects, creatures, and more – thanks to its Predation feature. Additionally, Imaginary Space provides access to a limitless, internal dimension.

Honestly, this ability is just mind-blowing! It’s all about playing with infinity in so many different ways, and when I think about what Rimuru can do with it… it’s incredible! He’s actually been able to contain someone as strong as Veldora inside it – it’s a testament to just how powerful it truly is.

4. Raphael

Raphael, the ultimate form of the Unique Skill Rimuru gained after being reborn, has been a vital guide and essentially acts as Rimuru’s all-knowing assistant. It provides critical information about the world, helps Rimuru learn and improve their abilities, and is a key reason for Rimuru’s incredible power and status as the strongest Slime ever.

This Skill is one of fourteen powerful abilities created by Veldanava, the god from That Time I Got Reincarnated As a Slime. Essentially, it’s designed to control and manage other Skills. A key part of this is ‘Alteration,’ which allows users to modify how Skills work. Its high ranking comes from ‘Analytical Appraisal,’ a sub-Skill that lets Rimuru gather a lot of information about everything around them.

3. Azazel

Azazel is one of fourteen incredibly powerful Demonic Skills, created by combining two of Diablo’s unique abilities – Tempter and Seeker. This combination results in an exceptionally strong Ultimate Skill. Beyond the core ability, Azazel grants access to other powerful skills, such as Demon Lord’s Haki, which creates overwhelming spiritual pressure. It also significantly boosts thinking speed – potentially hundreds of times faster than normal – and allows the user to control spacetime.

Diablo’s greatest power is his Temptation World – a realm he completely controls. It’s incredibly difficult to escape, requiring willpower greater than even his own immense demonic strength. Within this world, Azazel can strip opponents of their abilities, even their most powerful skills, allowing him to defeat incredibly strong enemies.

2. Nodens

Guy Crimson, the original Primordial Daemon and Demon Lord, gained an extraordinary Ultimate Skill after evolving his Lucifer skill – which itself was an upgrade from a Unique Skill called Pride. This Lucifer ability allowed him to perfectly replicate any skill he observed and studied, without losing its power. In the That Time I Got Reincarnated as a Slime series, he used Lucifer to copy powerful skills like Beelzebuth, Gabriel, and Michael – the highest-ranked of the fourteen Angelic Skills created by Veldanava.

I’ve been observing Guy, and it’s amazing what he can do with Nodens. It’s not just about replicating skills he sees – he can actually create new ones. He can build entire worlds inside his imagination, and travel anywhere instantly, even to completely different dimensions, just by thinking about where he wants to go. It’s like teleportation, but powered by his mind.

1. Michael

Michael is widely considered the strongest of all Ultimate Skills. Created by Veldanava as one of fourteen Angelic Skills, it grants the user power over others’ free will. This allows them to control people, steal their knowledge and abilities – including other Skills – and perform many other incredible feats. Some of its specific abilities include Armageddon, which summons an angelic army, and Castle Guard, an unbreakable barrier fueled by the loyalty of those who follow the user. Furthermore, Ultimate Dominion lets the user completely control anyone with an Angelic Skill, freely using or even copying their powers.

The Ultimate Skill was almost a separate entity, eventually taking control of Rudra’s body and replicating various abilities and enchantments, including those known as Agni, Astarte, Azrael, Haniel, Mammon, Metatron, and Sandalphon, among others. When Veldanava gave up his limitless power by releasing his Ultimate Skills, he held onto Michael specifically because it was too powerful to give to anyone else.

2026-05-10 00:37