Fastest Way to Clear Sukuna Calamity Mode in Re:Rangers X Guide

The latest update in Re:Rangers X introduced the Sukuna Calamity Mode, one of the toughest challenges currently available in the game. Many players initially assumed this mode would require a full team of powerful units to clear efficiently. However, a surprisingly simple strategy has been discovered that allows players to complete the stage extremely quickly.

With the right setup, it is possible to clear the Nightmare difficulty Calamity Mode in around 40 seconds using only one main damage unit. This guide explains the fastest method, including the recommended unit, build, and strategy to complete the stage consistently.

Best Unit for Sukuna Calamity Mode

The most effective unit for this strategy is Etto, also known by some players as Crimson Owl. This character has strong damage output and abilities that work well against the enemies in Calamity Mode.

In fact, it is technically possible to clear the mode using only Etto, making it one of the most efficient farming strategies currently available. However, bringing a second unit is recommended to make the run more consistent.

Recommended Secondary Unit

While Etto does most of the damage, bringing another unit helps absorb enemy attacks so your main damage dealer can keep attacking safely. A good example is Vegito (Solar Fist). The role of this unit is not to deal damage but to:

• Take incoming attacks
• Distract enemies
• Protect Etto during the fight

This allows Etto to stay focused on dealing damage to the boss without interruptions.

Why Using Fewer Units Works

One of the key mechanics in this mode involves the boss Mahoraga. The more units that attack Mahoraga, the more his passive ability activates. When this passive stacks up, the boss gradually takes less damage from your team.

Because of this mechanic, using too many units actually makes the fight slower. Limiting your team to one or two units helps prevent the passive from building too quickly, allowing you to deal maximum damage.

Recommended Etto Build

You do not need extremely high stats to make this strategy work, but certain items and upgrades help improve the clear time.

Required Upgrades

Make sure Etto has:

• Sovereign
• Hyper upgrade

These upgrades significantly improve damage output and overall performance.

Recommended Equipment

For the best results, use the following gear:

• Ringaku Sight
• Glasses
• Wings of the Valkyrie
• Armored Shoes
• Ethereal Lance
• Soul of Sloth

This setup focuses on improving damage and cooldown efficiency.

Curse Setup

The curse effect used in this strategy focuses on improving ability usage speed. Example stats include:

• -14% Ability Damage
• 15% Cooldown Reduction

Even though the curse is not the most important part of the build, cooldown reduction helps Etto cycle abilities faster, which improves overall damage output.

How the Strategy Works

Once you enter Calamity Mode (Nightmare), the strategy is very straightforward.

1. Deploy Etto as your main damage dealer.
2. Use the secondary unit to absorb enemy attacks.
3. Focus entirely on damaging the boss.
4. Avoid adding more attackers to prevent Mahoraga’s passive from stacking.

During the run, enemies will rush forward quickly, but Etto can eliminate them efficiently while moving toward the boss.

Sukuna Calamity Mode in Re:Rangers X may look intimidating at first, but with the right setup it becomes surprisingly easy to farm. Using Etto as the main damage dealer and limiting your team to one or two units allows you to bypass the boss’s passive mechanics and finish the stage extremely quickly. With average clear times around 40 seconds, this method is currently one of the fastest ways to grind the mode. If you are farming materials or preparing for Sukuna evolution upgrades, this strategy can save a huge amount of time while keeping runs simple and consistent.