Hi guys this is my first guide and I'm gonna show you the ropes as an experienced Sivir player.
Sivir can play mid or Adc she also excels in doing a lot of damage while staying safe.
(My build might not be for everybody so don't be hatin)

Life Steal I say is one of the most important things on a Sivir without it you'l probably die a lot not to mention Bt And Er Do 80 Ad!80 ****ing Ad! Which Is the highest(I think)
And you have Guinsoo's which gives you attack speed, damage, ap and lifesteal. Which is Just what you need Some people would think hex is better but for Sivir It's not.

Remember to max W if your going Ap and Q if Ad.

Q And W Are really good at farming, when using Q don't try to hit minions only try to poke them at the same time. With W its just as easy.

So Guys If You Have Any Questions Just Ask!
I Hope This helped you.