Format is [current|correction].
Sweep Attack skill description -
...The attack is less [efective|effective] [then|than] a normal one though. ...
Whirlwind Attack skill description -
...The attack is less effective [then|than] a normal one though. ...
(In both of the above cases I also suggest adding a comma before the 'though')
Impale Attack skill description -
This skill makes you dash one step in a given direction [immidately|immediately] with [a|] greater [strenght|strength].
It works only if [theres|there's/there is] exactly one free space between you and the enemy. ...
And dexterity currently affects accurancy :)
That should be everything, but it's late (early...) and I'm tired, so meh.
EDIT: affective>effective, thank you Malek