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  1. Attack on Titan: The Walls
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SURVEY CORPS BLADES : Ultrahard Steel Blades

[ENTRY W1: SURVEY CORPS BLADES]

Standard Issue: Ultrahard Steel Blades
Length: Approximately 3 feet
Composition: Secret alloy developed pre-Fall. Extremely sharp, slightly flexible, designed to break after impact.

Blade Design:

  • Double-edged for extended use

  • Serrated base for emergency cutting

  • Quick-release mechanism for rapid replacement

  • Color-coded hilts for length identification

Blade Durability:

  • Soft Tissue (Titan necks): 1-2 kills per blade edge

  • Hard Tissue (Titan bones): 1 kill, blade usually breaks

  • Armored Surfaces: 0 kills, blade shatters on contact

  • Human Combat: 5-10 engagements (rarely used this way)

Blade Psychology:
The blades are designed to break. This is intentional. A broken blade forces soldiers to retreat and reassess rather than overcommit. It also ensures blades are regularly replaced—dull blades don't cut Titan napes.

Veteran's Wisdom:
"Count your blades. Always. When you're down to your last pair, you're down to your last chance."
— Miche Zacharius

Grip Styles:

  • Standard Grip: Blades forward, elbows bent—ready for horizontal cuts

  • Reverse Grip: Blades backward—used for close quarters or upward strikes

  • Dual Wield: Both hands occupied—maximum cutting potential, no emergency options

  • Single Blade: One hand free—used for signaling, grabbing, or emergencies

Cutting Techniques:

Horizontal Cut:

  • Used for standard nape strikes

  • Requires maximum speed and precision

  • Target area: 3-foot diameter on Titan neck

Vertical Cut:

  • Used for descending strikes

  • Target area: 2-foot vertical strip

Spinning Cut:

  • Uses momentum from swing to增加 force

  • Advanced technique, high risk of disorientation

  • Target area: Any, but accuracy suffers

Double Cut:

  • Both blades striking simultaneously

  • Used for larger Titans or uncertain angles

  • Target area: Overlapping strikes increase kill probability

Emergency Techniques:

Deflection:
Using blades to redirect Titan hands—extremely dangerous, blades often break

Grapple Cut:
Cutting while anchored to Titan—suicidal but occasionally necessary

Mid-Air Recovery:
Using blades to brake or pivot when anchors fail

Not every situation calls for blades. Experienced soldiers carry alternatives:

Thunder Spears:

  • Explosive projectiles

  • Used against Armored Titan

  • Extremely dangerous to user

  • Limited range, single use

  • Not standard issue—special request only

Flare Guns:

  • Color-coded signals

  • Green: Titan sighted

  • Red: Emergency/Retreat

  • Black: Commander's signal

  • White: All clear/Formation hold

  • Every squad leader carries multiple flares

Smoke Bombs:

  • Concealment and distraction

  • Limited effectiveness (Titans track movement, not sight)

  • Used for escapes and repositioning

Wire Traps:

  • Deployed between buildings

  • Can trip or slow Titans

  • Requires setup time

  • Rarely effective against large Titans

Grappling Hooks (Manual):

  • Backup for failed ODM anchors

  • Hand-thrown, less accurate

  • Used in emergencies only