If you don't have flat AD runes for early game, you won't do as great early. I play with AD/lvl runes but I suggest using flat runes for beginners, which is why I put them up.

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Way too squishy, really weak late game. If you rushed Berserker's (and then BT) instead of rushing BT I don't think you'd need those Quints of Swiftness. You don't need Movement Speed to sit under your turret harassing with your Q. Quints of Desolation would give you more damage throughout the whole game. Flat AD also doesn't help, only early game. Your biggest advantage is the Q in the first few levels, but that goes away fast, and you need to carry for your team otherwise if the game lasts too long you may lose, even if fed.

Also, you don't get defensive masteries. Makes me think you really wanted to focus on those first few levels with the Q, just don't forget you're a carry and people will expect some things from you late game.

This build made me think of Varus as a Urgot, which is a good thing in its own, even though I still prefer Urgot for that purpose.

Guide itself was way too confusing and painful for the eyes, but it was fun and entertaining.

I do see the benefits. Movement speed quints are great. You get to flee and chase way easier. And thanks for letting me know about that con, I'm definitely going to add a few defensive items to the last two "decisive" items. And I'll add it to the cons as well, and thanks, "dood" for the compliment.

I don't really see the benefit in picking movement speed quintessences over the commonly seen 9x Greater mark of desolation in combination with 3x Greater Quintessence of Attack Damage.

Edit: And I'd definitely list his lack of survivability when his ultimate/flash aren't up as one of the cons.

Wow. Great build. I love how you gave a thorough explanation of what to get and when. Great build.