Grimm, the enigmatic leader of the Grimm Troupe, is a fan-favorite character in Hollow Knight, offering a compelling side quest and challenging boss fights. Confronting Grimm requires skill, precise timing, and the right charm build. This guide outlines optimal charm setups for both Troupe Master Grimm and the significantly tougher Nightmare King Grimm.
All builds require the Grimmchild charm (occupying two charm notches) to unlock the boss fights.
Best Charm Builds for Troupe Master Grimm
Troupe Master Grimm provides a crucial introduction to Grimm's moveset. This fast-paced fight demands precise openings. The builds below offer effective strategies.
Defeating Troupe Master Grimm unlocks the final charm notch, essential for Nightmare King Grimm builds.
Nail Build
- Unbreakable/Fragile Strength
- Quick Slash
- Longnail
- Grimmchild (Mandatory)
This build maximizes nail damage between Grimm's attacks. Quick Slash allows for efficient hit combos. Unbreakable/Fragile Strength is crucial for damage output. A Coiled or Pure Nail is recommended. Longnail replaces Mark of Pride, offering increased range despite occupying fewer slots.
Spell Build
- Shaman Stone
- Grubsong
- Spell Twister
- Unbreakable/Fragile Heart
- Grimmchild (Mandatory)
For spell-focused players, this build utilizes Shaman Stone for increased spell damage, combined with Spell Twister for faster spell casting. Grubsong maintains soul reserves, while Unbreakable/Fragile Heart provides extra health.
Best Charm Builds for Nightmare King Grimm
Nightmare King Grimm is significantly harder, dealing double damage and possessing enhanced speed and attacks. His new flame pillar attack presents a key vulnerability.
Best Build
- Unbreakable/Fragile Strength
- Shaman Stone
- Mark of Pride
- Grimmchild (Mandatory)
This hybrid Nail/Spell build uses Shaman Stone for consistent damage, while Unbreakable/Fragile Strength and Mark of Pride boost nail damage during openings. Abyss Shriek and Descending Dark are highly effective spells.
Alternate Build
- Grubsong
- Sharp Shadow
- Shaman Stone
- Spell Twister
- Nailmaster's Glory
- Grimmchild (Mandatory)
This defensive build emphasizes spells and Nail Arts. Shaman Stone and Spell Twister maximize damage output. Grubsong replenishes soul, Sharp Shadow allows for evasive maneuvers, and Nailmaster's Glory enhances Nail Arts' effectiveness.
