GURPSよろず

ST-Based +100% or +30%
This enhancement lets you add your dice of thrust or swing damage to that of an Innate Attack, effectively turning it into a muscle-powered weapon. It may be applied to any melee or ranged attack that does crushing, cutting, or impaling damage.
ST-Based is incompatible with any modifiers that don’t suit a muscle-powered attack. These include Area Effect, Blood Agent, Cone, Contact Agent, Cyclic, Explosion, Follow- Up, Jet, Malediction, Onset, Resistible, Respiratory Agent, Sense-Based, and any modifier that has one of these modifiers as a prerequisite.
You may choose, when attacking, whether to use your thrust or swing damage. Under most circumstances, the higher swing damage is the better choice, but there are times when thrust makes more sense; e.g., when attacking underwater. Also, if you use swing damage to make an impaling melee attack, it may get stuck in your foe (p. B405)!
A ST-Based attack can make use of All-Out Attack (Strong) (p. B365), Mighty Blows (p. B357), and other similar methods of increasing muscle-powered damage. You may also use abilities like Power Blow (p. B215) to boost your ST directly, though this does not affect the damage contributed from the Innate Attack. The damage provided by your ST is automatically Variable, but the Innate Attack damage is not.
The full ST-Based enhancement is +100% and works as described above. For +30%, a weaker version – ST-Based, Limited – is available with the following additional drawbacks:

• It must be combined with the Melee Attack limitation.
• When making a cutting attack, you may only use your swing damage. When making an impaling attack, you may only use your thrust damage. Crushing attacks may use either.
• The total damage added by your ST cannot exceed that of the Innate Attack. For example, Crushing Attack 1d (Melee Attack, Range C, -30%; ST-Based, Limited, +30%) could inflict a maximum of 2d damage, even if you had ST 100. All-Out Attack (Strong), Mighty Blows, etc., can still be applied to this capped damage.

ST-Based can unbalance certain aspects of the game. In particular, Crushing Attack 1d (Melee Attack, Range C, 1, -20%; ST-Based, +100%) [9] boosts the damage of bites, head butts, kicks, and punches approximately as well as Striking ST 8 [40]! And a weak Cutting Attack or Impaling Attack can be an inexpensive alternative to Claws or Strikers. The GM should consider these issues before allowing ST-Based in a non-supers game.

The ST-Based enhancement (above) does not normally require familiarity with the rules for modifying muscle-based damage (pp. 9-11). By definition, if you have Cutting Attack 3d (ST-Based, +100%), you don’t need to do anything special to your ST or muscle-based damage to apply it to the Cutting Attack – if you do 5d+2 swing, then your attack does 8d+2 cutting. It’s as simple as that.
Things do get more complex when an attack has ST-Based and one or more enhancements that affect the attack’s ability to damage things or the effects of its damage:

• Affects Insubstantial
• Affects Substantial
• Armor Divisor
• Cosmic (Attack with a lingering special effect or Irresistible attack)
• Damage Modifiers (any)
• Mental Defense Only
• Side Effect
• Surge, Arcing
• Symptoms

If an attack has ST-Based and any of the enhancements above, you must use the rules for modifying unarmed attacks (pp. 9-10) to add them to the damage being contributed by your muscles. (Don’t use the rules for weapons, even for a non-crushing attack – you’re not wielding a weapon, you’re using an innate ability!)

Example: Brad has ST 19, for 2d-1 thrust damage. He buys a spike shuriken attack as Impaling Attack 1d (Armor Divisor (2), +50%; No Blunt Trauma, -20%; No Signature, +20%; ST-Based, +100%) [20]. He must also apply Armor Divisor (only) to his muscle-based damage: 2d-1 crushing would cost 9 points, and 50% of 9 rounds up to 5, so he adds 5 points to the cost of this attack, raising it to 25 points total.


New Enhancements
The list above covers all known general enhancements to date – but it cannot foresee modifiers added in future GURPS books! The GM, as always, is the arbiter of whether a given new enhancement should be added to the list, using the following guidelines.
The list intentionally leaves off limitations; acquiring an attack with limited utility doesn’t reduce the usefulness of your built-in strength! Enhancements that affect range, rate of fire, targeting ability, etc., are also not an issue, as such things are unconnected to the damage contributed by your muscles. Finally, any enhancement that covers something that inborn strength can already do (e.g., Variable) can be ignored.

追加修正

関連参照用

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以下コピペ用表記

#include(追加修正)

『ベーシックセット』第2章：有利な特徴（CHAPTER TWO　ADVANTAGES）　B34P

• 修正（Modifiers） p.99
  • 増強（Enhancements） p.99
    • コラム：L-特別修正（Special Modifiers） p.99　特別修正
    • 　用語：特別増強 (Special Enhancement)
    • 　用語：特別限定 (Special Limitation)
    • コラム：L-有利な特徴の射程・範囲・持続時間（Range, Area, and Duration for Advantages） p.99
    • コラム：L-攻撃の増強と限定（Attack Enhancements and Limitations） p.99
    • 　用語：攻撃修正 (Attack Modifier)
    • ▲用語：貫通力修正（Penetration Modifiers）
    • コラム：L-増強を起動・解除する（Turning Enhancements Off and On） p.99
  • 限定（Limitations） p.106
    • コラム：選択ルール : 増強の限定 （Optional Rule: Limited Enhancements） p.108
  • コラム：L-修正された攻撃の例（Examples of Modified Attacks） p.110
  • コラム：キャラクター作成の例（続き）（Example of Character Creation (cont’d)） p.112
  • L-発明品の限定（Gadget Limitations） p.113
  • ▲用語：限定値（Limitation Value）

• 第2章：有利な特徴 （2. Advantages） p.34
  • 有利な特徴の種類 （Types of Advantages） p.34
    • 用語：「精」、精神的特徴、精神的有利な特徴（Mental Advantage）
    • 用語：「肉」、社会的特徴、社会的有利な特徴（Social Advantage）
    • 用語：「社」、肉体的特徴、肉体的有利な特徴（Physical Advantage）
    • 用語：「特」、特殊的特徴、特殊的有利な特徴（Exotic Advantage）
    • 用語：「超」、超常的特徴、超常的有利な特徴（Supernatural Advantage）
    • 用語：「一」、一般的特徴、一般的有利な特徴（Mundane Advantage）
  • コラム：潜在的有利な特徴 （Potential Advantages） p.34
  • コラム：何の特徴が許可されるのか （What’s Allowed） p.35　旧名は「何が許可されるのか」
  • 有利な特徴の起源 （Advantage Origins） p.35
  • 有利な特徴の起動と解除 （Turning Advantages Off and On） p.36
• ▲第4版特徴一覧
  • L-有利な特徴一覧 （Advantage List） p.37
    • コラム：選択攻撃 （Alternative Attacks） p.79
    • コラム：登場頻度 （Frequency of Appearance） p.82
    • コラム：防御の限定 （Limited Defenses） p.91
    • 特典（Perks） p.98
• 新しい有利な特徴（New Advantages） p.113
  • L-既存の有利な特徴を修正する（Modifying Existing Advantages） p.113
    • L-名前を変える（Rename）
    • L-再定義する（Redefine）
    • L-組み合わせる（Combine）
    • L-修正する（Modify）
    • L-微調整する（Fine-Tune）
  • L-完全に新しい有利な特徴をつくる（Designing Entirely New Advantages） p.114
    • L-CPを最終的に決定する（Finalizing the Cost）
• 有志によって追加された特徴分類や表
  • ▲特徴グルーピング表
  • ▲判定に修正を与える特徴一覧表
  • ▲下位の特徴と上位の特徴
  • ▲汎称特徴
  • ▲消耗品型特徴

• 増強『GURPS Power-Ups 4：Enhancements』、増強表
• 限定『GURPS Power-Ups 8：Limitations』

1. Powersの追加修正
2. 限定「消耗品型」［-80%］