Heavy Blow

Heavy Blow is a Charm in Hollow Knight. It increases an enemy's knockback when hit by Nail strikes or Nail Arts. It also reduces the number of hits required to stagger a Boss by 1.

Usefulness
High knockback can be useful for enemies who have an uninterruptible attack. Using Heavy Blow against this kind of enemy will usually push them back far enough to prevent their attack from hitting the Knight, allowing for more consecutive attacks, a chance to escape and heal, and safer Nail attacks for enemies with high range (thus removing the need for a ranged Spell and saving SOUL).

Enemies that do not take knockback will not be affected by Heavy Blow's increased knockback. This includes most Bosses.

Since Heavy Blow decreases the hits needed to stagger a boss by 1, it can be useful during boss fights.

How to Acquire
Bought from Sly for after bringing him the Shopkeeper's Key found in the Crystal Peak.

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