Backstab while it is distracted.
*5 +10 = 15*
Yet another opportunity presents itself, you see that it's spine is well defined, thus your target is marked out rather clearly. You unsheath your falchion, and you begin to roll silently towards the unsuspecting beast. You drive your cold, Special Silver imbued steel, and it dies. It bleeds out at first, then his blood burns. Your companions are sickened by this, incurring a soft giggle from you.
*10*
Another ghoul like creature charges up at you, and hits you in the right arm, leaving a nasty scratch (-4). You roll far enough to avoid the sharp blade from cutting your hand off. However it burns. Your companions literally piss themselves at this. This cheers you up, and you prepare your next attack.
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In the real, tangible world, the grandmaster's palm is pressed against his face, as all his initiates have literally pissed on the new bedsheets.