I was doing some sweep reps in Stone Valley, and noted this ...
>>The stone troll is stunned!
Roundtime: 4 sec.
R>stance defen
> hide
A stone troll's flesh wounds regenerate slowly.
A stone troll's left leg regenerates and looks much better.
A stone troll flails her arms about angrily, shaking off the stun!
A stone troll lurches to her feet!
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>sweep
You come out of hiding.
[Roll result: 147 (open d100: 75) Penalties: 10]
You crouch, sweep a leg at a stone troll and connect!
A stone troll falls to the ground! You deftly regain your footing.
[You have 1 repetition(s) remaining.]
Roundtime: 5 sec.<<
OK, what are the penalties due to? I am same level as the troll (55), have absolutely no wounds or even any scars, and am unencumbered. I have 100 in all physical stats (Str, Con, Dex and Agi), and in fact have strength spell in effect. 34 ranks in sweep. Question: what is the -10 modifier from on the attempt die roll? Is it because I am not yet mastered in this skill?
"For the female of the species
is more deadly than the male".