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Grimm stands out as one of the most iconic and beloved characters in Hollow Knight and the broader metroidvania genre. His enigmatic presence and unique aesthetic make him the captivating leader of the Grimm Troupe. As the Knight journeys to save Hallownest, Grimm offers a compelling side quest that brings closure to the adventures of the Grimm Troupe.
During these adventures, players must confront Grimm at least once, with the opportunity to face an even more formidable version of him to complete the Grimm Troupe DLC. Both Troupe Master Grimm and Nightmare King Grimm present some of the game's toughest challenges, demanding precise movement, quick reflexes, and unwavering tenacity to survive their deadly dance. Choosing the right charms is crucial to overcoming both versions of Grimm.
All charm builds for both Grimm fights in the base game require the Grimmchild charm to be equipped, which occupies two charm notches.
Best Charm Builds For Troupe Master Grimm
Troupe Master Grimm introduces players to his basic moveset and attack patterns. This battle is fast-paced and more of a dance than a brawl, requiring elegance and strategic timing rather than brute force. Here are some effective charm builds to help you conquer this challenging encounter.
Completing the Troupe Master Grimm fight unlocks the final Charm Notch, essential for tackling Nightmare King Grimm with some of the best builds.
Nail Build
- Unbreakable/Fragile Strength
- Quick Slash
- Longnail
- Grimmchild (Mandatory)
This charm build focuses on maximizing your Nail's damage output during breaks in Grimm's attacks. Given the slower pace compared to Nightmare King Grimm, a Nail build is viable for landing multiple hits, thanks to Quick Slash.
Unbreakable or Fragile Strength is essential for any Nail build, boosting the damage dealt by your Nail. Aim to have at least the Coiled Nail or the Pure Nail before this fight to effectively deplete Grimm's health.
Although Nail builds typically include Mark of Pride, Longnail serves as a solid alternative here due to Grimmchild occupying two charm slots. While Longnail provides a slightly smaller range increase compared to Mark of Pride, it's invaluable for striking Grimm at the tail end of his attacks, such as the Diving Dash and Uppercut.
Spell Build
- Shaman Stone
- Grubsong
- Spell Twister
- Unbreakable/Fragile Heart
- Grimmchild (Mandatory)
For players who prefer spell-based combat or are less confident with the Nail, the Spell build is ideal for quickly defeating Grimm. By this stage, players should have access to upgraded spells like Descending Dark, Abyss Shriek, and Shade Soul, with the first two being exceptionally effective against tough bosses.
Shaman Stone is crucial for any Spell build, significantly increasing the damage of your spells. Paired with Spell Twister, you can cast more spells before needing to recharge your Soul with Nail hits.
Given the difficulty of avoiding hits in this fight, Grubsong helps keep your Soul gauge full. Unbreakable/Fragile Heart provides extra masks, allowing you to focus more Soul on casting spells.
Best Charm Builds For Nightmare King Grimm
Nightmare King Grimm takes the challenge to another level. He deals double damage, making him a lethal threat, and moves much faster than his Troupe Master counterpart. Additionally, he gains a new attack with flaming trails on most of his moves, which also deal double damage. The new flame pillar attack, however, can be exploited to land powerful Abyss Shrieks. Here are the best charm builds to tackle one of the toughest metroidvania bosses.
Best Build
- Unbreakable/Fragile Strength
- Shaman Stone
- Mark of Pride
- Grimmchild (Mandatory)
A pure Nail build isn't effective against Nightmare King Grimm. A hybrid Nail/Spell build offers the best chance of success, leveraging the power of Abyss Shriek and Descending Dark. Shaman Stone is essential for boosting spell damage, while Unbreakable/Fragile Strength and Mark of Pride enhance your damage output during windows where using spells is risky or not possible.
Alternate Build
- Grubsong
- Sharp Shadow
- Shaman Stone
- Spell Twister
- Nailmaster's Glory
- Grimmchild (Mandatory)
This more defensive build focuses on using spells and the often-overlooked Nail Arts to counter Nightmare King Grimm's lethal attacks. Shaman Stone and Spell Twister are crucial for maximizing spell damage, and Grubsong helps maintain your Soul gauge.
Sharp Shadow allows you to dash through most of Nightmare King Grimm's attacks with the Shade Cloak, dealing damage in the process. Nailmaster's Glory enhances the effectiveness of Nail Arts, allowing you to chip away at his health alongside strategic spell use.