Double Strike Confusion.

[Jesulus]

To put this simply.

Double Strike Confuses me.
I'm an idiot and I need help learning how this works.
Outside link would help, but the simpler the better.

I did try searching for a simple explanation, but with no luck D:
Thanks!

[k1ngp1n]

Every swing you'll have a percentage chance that you'll do damage twice instead of once. It replaces alacrity speed bonuses, with increased the rate of the attack swings.