[Skills help] second attack

Automatic

Second attack provides a chance of getting an additional attack with
a weapon each combat round.  This does not work with bare hands, requiring a
weapon to be wielded.  Weapon speed is a big factor in whether or not this 
skill will succeed as slow weapons will not always be able to recover in time
for another swing.  Ranged and thrown weapons also use this skill.

See also: 'third attack' 'fourth attack'