First and foremost I have to say that in my experience Sivir is not a ganker because she's so squishy, but she's is by far the best pusher I have ever seen. Se can destroy turrets and minion waves like they are not even there, and this build has been the best carry for just that, at least for me. Great for sneeking away to backdoor an inhibitor before the other team even has time to respond. Sivir can definately turn the tide of the game, but like I said she's squishy so MAP AWARENESS is everything!!

I know the seals aren't the best in attack speed, but it's helpful for early farming, but please use whatever works for you and post whatever you think so I can try yours as well.

I can't stress enough that the order you choose in game is more dependent on how your game is going, but you should always buy dependent items as soon as possible. This build is kind of expensive, so make sure you farm lanes and jungle whenever you can get away!! One Last thing, i usually have more luck with the Black Cleaver, but if your trying to gank and they keep running away I would go with the Frozen Mallet instead for your final item.

Sivir is an extremely aggressive harasser, and her boomerang blade has an awesome range, and when you reach 18 you can kill a minion wave with a single throw more or less. Ricochet is great for getting subsequent hits against minions on towers so your minions can focus on the turret. It's also great for hitting enemy champs that are on the other side of minion waves, more or less an extending harassment. Spell shield is really great for initiation PVP or when your on the run to prevent slows, but it doesn't last long so make sure your timing is on. On the Hunt is a massive tower pushing utility, and it's good for getting away as well. since this build is mostly designed for back door tactics On the Hunt will give you that extra hit and run speed to get in, get done, and get out.

Your going to be frequently going back to base for new items, so getting back to the fight is the most important thing on your to do list. Make it snappy and be aggressive!!

All in all this seems to work for me. Please let me know what you think, and give me some feedback. Thanks guys