Hi!
My name is Murad.
I want to apologize at once for my English, which is not my native language.

In this guide I want to show you a build on Sivir.Let me tell you right away that I'm not a professional player, I just like this character and the way I build her.
Let's start with the fact that I have a ping of 80-100 and play from blows for me hard and farm long is boring.

Boomerang BladeOur main damage skill.
35 / 50 / 65 / 80 / 95 (+ 70 / 85 / 100 / 115 / 130% AD) (+ 50% AP)
Crits don't work.

In items and runes we need AD and preferably ms.

Ideal item:
Muramana

15 Ability Haste
35 Attack Damage
860 Mana
Bonus attack damage equal to 2.5% maximum mana
Damaging abilities against champions deal 2.7% maximum mana (+6% AD) bonus physical damage.

Tear of the GoddessGood item for mana and minions at the start.
There is no point in buying Manamune immediately, you have to wait for 360 values.

Manaflow Band + Tear of the Goddess + Spell Shield will give mana to spam infinitely Boomerang Blade

Celerity works well with Magical Footwear Fleet of Foot Approach Velocity
All together gives you good mobility.

First Strike and Future's Market give us gold.
We can easily activate First Strike with Boomerang Blade It allows us to buy items earlier and saves us from having to wait for enough gold for an item.

This is suitable for aggressive play, if the game drags on and you have good killers against you, you will feed your opponents.

I play this way because it's fun, easy, and doesn't depend on network lag.
You just throw a Q and an opponent with no good physical defense gets 1/4 xp after a hit.
Yes, you are a crystal vase, and you need to have a good sense of position.