Overview

Bone Charm is a survival-first trinket entry. Use it when a route values consistency over speed.

Best uses

  • Learning new boss patterns.
  • Exploring long routes between checkpoints.
  • Stabilizing early-game resource mistakes.

Skip when

Skip it when you already know the route and want damage, speed, or sidearm uptime instead.

How to Get Bone Charm

Best use cases

  • Use Bone Charm for blind exploration, long runbacks, and routes where one mistake can cost too many Bones.
  • Equip it when the route problem matches the effect instead of filling every slot with raw damage.
  • Swap away from it for bosses or rooms where the passive effect does not create a clear advantage.
  • For 100% routes, write down why it is equipped before a pickup, boss split, or cleanup loop; if the reason is vague, another Trinket is probably cleaner.

Route notes

  • Treat the location as unverified until you confirm it in your current save or a linked guide.
  • Test the route from the nearest Underlab so a failed pickup attempt does not risk a large Bone loss.
  • If the Trinket changes movement or resource economy, do one short room loop before committing to a boss attempt.

Tested notes

  • Current build metadata tags this as DEF,UTL Trinket affecting Defense,Passive Effects.
  • Extra Stat Level metadata: Attack 0, Defense 1, Sidearm 0.
  • Recheck slot cost and exact effect text in-game after patches before using it in a strict route.
  • Compare it against a neutral survivability Trinket before calling it optimal; the better pick is the one that prevents resets in the current section.

Common mistakes

  • Equipping it because it sounds strong, then ignoring whether the current room actually rewards the effect.
  • Keeping it on during blind exploration when a safer mobility, defense, or recovery option would prevent resets.
  • Forgetting to update the loadout at a Trinket Chest before switching from cleanup to boss attempts.