Before we discuss anything, this build was, this build was meant for the Top Lane, this Shyvana build is all about attack speed and movement speed, or to be more accurate, making it basically impossible for the enemy to escape you while chew them up. As can be seen in the runes, the faster you are, the more damage you'll do, including the MS granted by your W and the almost instant activation of Phase Rush with your Q, this Shyvana is near inescapable. For a quick walkover of Shyvana, she is typically used in the jungle ( to do that you can switch the teleport for smite and include your Skirmisher's Sabre - Bloodrazor, which is listed in situational items ) but she is also suitable for top, which is where this build is most ideal, because most top laners have little-to-no escape ability.