This post isn't so much for the hardcore Deathstroke fan, but for the fan that either wants to educate a comics newcomer or to straighten out a misinformed Arrow viewer as to what makes Slade Wilson such a freakin' cool villain. VariantComics put out the aptly named "History of Deathstroke!" video a few years back that sufficiently but succinctly introduces Deathstroke, summarizes his origin, details his powers and abilities, spotlights his major DC rivals, and provides a pretty good best of Deathstroke reading selections. The video is posted on YouTube, but can also be seen below. A word to the wise; the Deathstroke content only runs until approximately 6:56.