The 12 Patrons of Rimuru Power Ranking: Who Is the Strongest Guardian Lord?

If you’ve been deep into That Time I Got Reincarnated as a Slime, you already know Rimuru isn’t just building a nation—he’s building a pantheon. The Twelve Guardian Lords (Patrons) are easily one of the most fascinating power groups in modern isekai, especially once you move beyond the anime and into the Light Novel territory.

As someone who’s followed Tensura for a while, I’ll be honest: ranking these characters is messy. Power in this series isn’t just about raw numbers—it’s about Ultimate Skills, experience, compatibility, and sometimes straight-up broken abilities. Still, based on feats, scaling, and overall impact, here’s a grounded (but slightly opinionated) ranking.

The Top Tier: Untouchable Monsters

1. Diablo – The Absolute Apex

There’s really no debate here. Diablo isn’t just strong—he’s different. As a Primordial Demon (Noir), he has centuries of combat experience, and it shows in every fight. His Ultimate Skill: Mephisto allows him to manipulate reality within his domain, giving him overwhelming control over any battlefield.

What truly sets him apart is efficiency. Diablo doesn’t waste energy, doesn’t panic, and rarely even gets serious. When a character can handle top-tier threats casually, comparisons stop mattering—he simply stands above the rest.

2. Zegion – The Unbreakable King

Zegion feels like a raid boss that somehow joined your party. Created from Rimuru’s cells and enhanced with elite materials, his durability is absurd while his offensive power remains top-tier.

He consistently dominates sparring matches against other Patrons, proving that his balance of attack and defense is nearly perfect. If Diablo is the ultimate mage, Zegion is the ultimate tank-DPS hybrid.

3. Benimaru – The Tactical Powerhouse

Benimaru is often underestimated because he isn’t as flashy, but that’s exactly why he’s dangerous. His Ultimate Skill: Amaterasu combined with elite battlefield awareness makes him one of the smartest fighters among the Patrons.

He has proven that strategy can overcome raw power, even achieving victories against stronger opponents under the right conditions. His leadership and adaptability secure his place in the top tier.

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High Destruction & Broken Abilities Tier

4. Carrera – Raw Power Incarnate

When it comes to sheer destructive capability, Carrera is terrifying. Her attacks can wipe out entire landscapes, and her Judgment Bullet is one of the most devastating techniques among the Patrons.

However, her tendency to rely purely on overwhelming force rather than precision keeps her slightly below the very top.

5. Shion – The Reality Breaker

Shion doesn’t follow logic—she rewrites it. Her abilities allow her to alter outcomes in her favor, making her one of the most unpredictable fighters in the entire series.

Her battle against Dagruel proves that her power goes far beyond raw stats. When Shion fights, the rules themselves can bend.

6. Testarossa – The Perfect Assassin

Testarossa represents efficiency taken to its peak. She doesn’t waste motion, energy, or time—she eliminates targets with precision.

Her techniques, including devastating soul-based attacks, make her especially deadly in one-on-one combat, where she can outperform even stronger opponents through execution alone.

7. Ultima – The Sadistic Genius

Ultima thrives in prolonged combat. Her use of poison, curses, and copied abilities allows her to gradually overwhelm enemies.

She becomes more dangerous the longer the fight continues, making her one of the best scaling fighters among the Patrons.

Mid Tier: Versatile and Scalable

8. Kumara – The One-Army Beast

Kumara’s strength lies in versatility. With multiple tails acting as independent entities, she can control space, attack from multiple angles, and overwhelm enemies through sheer complexity.

Her growth throughout the series is significant, making her far stronger than she initially appears.

9. Ranga – Speed and Storms

Ranga is incredibly reliable in large-scale combat. His control over lightning, storms, and shadows allows him to dominate wide battlefields.

His natural synergy with Rimuru adds another layer to his effectiveness, making him more than just a support fighter.

10. Adalman – The Undead General

Adalman excels in warfare rather than duels. His ability to command undead armies and utilize hybrid magic makes him extremely dangerous in large-scale conflicts.

With additional power boosts like his fusion abilities, he becomes a key strategic asset in any prolonged battle.

Lower Tier (Still Extremely Powerful)

11. Geld – The Immovable Wall

Geld serves as the backbone of defense. His ability to absorb and redirect damage makes him invaluable during extended conflicts.

While he lacks flashy techniques, his endurance and reliability make him one of the most important Patrons in practice.

12. Gabiru – The Underdog Wildcard

Gabiru may rank last, but he is far from weak. His ability to alter fate once per day can completely change the outcome of a battle.

He lacks consistency compared to others, but in the right moment, his power can turn defeat into victory instantly.

Quick Comparison Table

Final Thoughts

What makes the 12 Patrons so compelling isn’t just their power, but how different they are from one another. From reality-warping abilities to tactical brilliance and overwhelming destruction, each Patron fills a unique role within Rimuru’s empire.

The gaps between them are not always absolute. In Tensura, matchups, timing, and abilities matter just as much as raw strength, meaning even lower-ranked characters can secure victories under the right conditions.

With all twelve serving under him, Rimuru isn’t just a Demon Lord—he commands a force that rivals the very foundations of the world itself.