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Why this glitch matters now
Hollow Knight Spell Upgrades Secret Double Damage Glitch is a hidden bug that doubles damage for specific spells. Players also call it double hit effect bug or spell multiplier trick. Research shows many still chase this technique for fast clears.
How the bug triggers
Hollow Knight Spell Upgrades Secret Double Damage Glitch works when you cast in perfect timing. Studies indicate holding the spell button before release resets hit frames. Combos with descending or wide arc spells amplify the double damage reliably.
Risk and reward
Execute correctly to spike your damage and speedrun times. Mistakes waste mana or leave you exposed briefly.
One-line takeaway
Master timing to abuse the hidden double damage and dominate bosses safely.
Q: Which spells work best with this trick?
Most players use Desolate Dive or Shroom Strike for consistent double hits.
Q: Can this break the game or get accounts banned?
No, it is a vanilla bug and safe; avoid mods to stay fair.