GURPSよろず

see p. B79
As written, 「毒舌」 is the largerthan- life gift of knowing precisely how to mortify and provoke enemies. The ability to stun foes with a few words or the sound of the voice doesn’t have to be silly, though --it could work by delivering a supernatural or vibratory shock to the victim’s psyche or body.

■代替案（Alternatives）
A sonic or mental blast that deafens or injures is an 「特殊効果」 (p. 39) or 特殊攻撃 (p. 53). Those who simply yell loudly have the 声が通る perk (p. B101).

■追加特別増強（New Special Enhancement）
Words of Power:
　You faze opponents with the supernatural might inherent in your words or voice.
Perhaps you know magic words from the dawn of creation --or speak with the voice of the gods! 言語 is no barrier, and you can affect those who have the 無感動 advantage. To use your ability, roll a Quick Contest of Will with your opponent, ignoring modifiers for 察しが悪い and 「ユーモア感覚の欠如」. Standard penalties apply if trying to affect a group. +100%.

■パワーアップ（Powering Up）
「毒舌」 might represent the ability to project one’s will using Telepathy or chi powers (in which case 精神防壁 aids rolls to resist).
In a cinematic supers game, it could be part of Sound/Vibration power.
Those with divine powers might also enjoy this gift. With Words of Power and 「宇宙パワー」 (+300%), it suits the cosmic powers of the gods, and would instantly stun any mortal! 才能 adds to 演説 skill or Will rolls to use this ability.