GURPSよろず

Quicksilver Strike
12 points*
Prerequisites: Combat skill at 20+, and either Trained by a Master or Weapon Master.
When you perform a Move and Attack maneuver (p. B366) in melee combat, you use your full skill and ignore the skill cap of 9. You also ignore the ‑2 for doing more than one thing at once, can make any active defense, can retreat, can use Rapid Strike (p. B370), and can use either Acrobatics or Jumping as part of your move. This takes its toll; each use of this power-up requires 1 FP. Quicksilver Strike works with Blade!, though the GM may allow it for other skills if desired.

Perks: Unique Technique (Quicksilver Strike) [1].
Techniques: Quicksilver Strike (Blade!) (H) Skill+0 [11].
＊ You may optionally take this as a power-up that works for all combat skills, but the cost becomes 34 points. “Greater Quicksilver Strike” makes a deadly and highly mobile warrior!

Under the Hood: Quicksilver Strike
Under the GURPS Martial Arts technique-design rules, Quicksilver Strike (above) is a Move and Attack with these modifications.

Benefit: Acrobatic Movement. You ignore the penalty for acrobatic movements. ‑2.
Benefit: Can Rapid Strike. Ignore the usual restriction on making Rapid Strikes. ‑1.
Benefit: Equilibrium. You can parry attacks normally after using a Move and Attack. ‑1.
Benefit: Full Skill. Ignore the skill penalty when making an attack. ‑4.
Benefit: Moving Target. You can Retreat (p. B377) after using Move and Attack. ‑1.
Benefit: No Skill Cap. Ignore the skill cap when making an attack. ‑1.
Benefit: Practiced Movement. You ignore the penalty for doing two things at once when using a Move and Attack. ‑1.
Drawback: Fatiguing. Use of this technique costs 1 FP. +1.

This makes the default skill-10. This technique is Hard because it allows for several instances of bending the rules along with sheer cinematic mobility and agility.