In Season 4, the boss in the Grave of Rot can cause Corrosion Damage and can one-shot heroes with high Corrosion stacks. This guide will focus on a lineup of easily obtainable Rare and Epic heroes that can clear this stage on Difficulty 9, as well as useful tips and strategies.

I. About The Boss

●Countermeasures
1. Deploy heroes that can provide shields to the team;
2. Dispel debuffs/Immunity.
3. Control Immunity/Stack Resistance on heroes that provide highest healing;
4. Attack Penalty/DMG Reduction/Defense Up;
5. Deploy heroes that can provide AOE healing to dispel Corrosion Damage;
6. Spread out your heroes so the boss won't be able to hit as many heroes with its second skill.

II. Team Configurations for Clearing this Stage

[Recommended Level and Equipment]

● Recommended Level
This stage tests the survival ability of your tank and DPS heroes. It is recommended that your deployed heroes are at least level 90.
● Equipment Requirements
The whole team is recommended to have fully refined (+20), Legendary quality equipment. If you have Mythic Equipment like Moonlight Mantle, Absolute Deterrence, or Precise Carnage Gauntlets with suitable attributes, you should use them in this stage. Adjust your equipment based on the overall strength and level of your team.

[Key Attribute Recommendations]

1. Ideally, the average HP of each of your heroes should be over 35,000.
2. It is recommended that your main tank hero have HP > 70,000 and DEF > 2,500;
3. Heroes responsible for applying debuffs should have more than 220 Accuracy.
4. Your hero with the highest healing ability should have over 220 Resistance;

III. Recommended Lineups

Lineup 1

Lineup: Garius + Nathaniel + Shook + Enna + Nimbus
Captain Aura: Garius - DEF Aura
Positioning Example:

Tips and Strategies for Clearing the Stage:
1. After the boss uses its first skill, quickly use Enna's ultimate skill to remove Healing Prohibition from your heroes.
2. Stacking Resistance on Garius is recommended for Garius to counteract the boss's second skill, which can stun your heroes. Before the boss uses its second skill, use Garius's ultimate skill to make Garius your hero with the highest healing ability.
3. The best time to release Shook's and Nathaniel's ultimate skills are before the Boss releases its third skill. This will lower the DMG of the boss's third and the first skills of the next round.
4. When your hero configurations meet the requirements, this lineup can easily clear the stage using Auto-combat. Skill timings can be set according to the following image:

Recommended Legendary Hero Substitutes:

Equipment Example:
When Garius's Resistance meets the requirements, it is better for Garius to use Moonlight Mantle as his Mythic Equipment.

Lineup 2

Lineup: Galyan + Vicuc + Adolphus + Deeno + Theodore
Captain Aura: Deeno - Enlightenment Aura
Positioning Example:

Tips and Strategies for Clearing the Stage:
1. After the boss uses its first skill, quickly use Vicuc's ultimate skill to remove Healing Prohibition from your heroes.
2. Stacking Resistance on Galyan is recommended for Galyan to counteract the boss's second skill, which can stun your heroes. Use Galyan's ultimate skill right after Vicuc removes Healing Prohibition to make Galyan your hero with the highest healing ability.
3. The best time to use Theodore's and Adolphus's ultimate skills are before the Boss releases its third skill. This will lower the DMG of the boss's third and the first skills of the next round.

Recommended Legendary Hero Substitutes:
Since Khrysos can provide many support functions, you can deploy an additional DPS hero to clear the stage faster.

Equipment Example:


The author was only able to activate the fifth level Elemental Affinity when he cleared this stage. Higher development or higher quality heroes will make it easier to clear the stage.