Here we are !
Are you bronze, silver and low gold ?
Do you think you can't carry when you are last pick and you have to go support ? Hell no !

Blitzcrank is, in my opinion, the best way to win your botlane.

Even in late game, one single grab can give you the win !

Against an agressive lane :
Armor and Magic resist, it'll allow you to stay alive by reducing the poke.

Against a defensive lane :
Hybrid Penetration increase your pressure on the lane.
CDR runes to have 10% at the beginning to grab more often !

0/9/21

Cooldown Reduction and Movement Speed.
Also a little bit of defense to make you tanky.

And please, no ap !

Starter :
Your first mission is to protect your ADC. Relic shield will offset the poke.
Your second mission is to give vision so you can avoid enemy ganks. That's why you'll need a ward + green trinket

First back :
If you earn more than 1300 gold without going back, go back.
Don't be afraid of loosing farm, you've already used your ward so you're vulnerable.
Upgrade your Relic Shield : you'll earn more money and you'll heal your ADC more often.
The sighstone MUST be the second item you buy. There's no good support without sighstone.
Then swap to the red trinket.

Mid game : 40% CDR and boots
You need 40% CDR.
With 5% in masteries you need 35% to get to 40.
Face of the mountain gives you 10%, and without the frozen heart you've reached 40%.
Iron Solaris also gives you 10% CDR, HP, Magic Resist and a nice shield for your team in teamfights.
After the recent nerf (yes, that's a nerf) Boots of Swiftness are better than Mobility cause it will reduce the W slow. It's also nice if you want to roam mid.

Late Game :
You need to tank, so buy HP and MR.
Up your sighstone and your trinket whenever you can to give vision to your team, and denie to enemy team.
Righteous Glory is a very good way to engage a teamfight.
And don't forget to use your Face of the mountain on your ADC or your Midlaner during teamfights.

Starter :
Your first mission is to protect your ADC. But against a defensive botlane, Ancient Coin will give you mana so you can grab more often and be more agressive.
Your second mission is to give vision so you can avoid enemy ganks. That's why you'll need a ward + green trinket

First back :
If you earn more than 1300 gold without going back, go back.
Don't be afraid of loosing farm, you've already used your ward so you're vulnerable.
Upgrade your Ancient Coin : you'll earn more money and you'll get more mana. The movespeed is also a musthave for blitzcrank.
The sighstone MUST be the second item you buy. There's no good support without sighstone.
Then swap to the red trinket.

Mid game : 40% CDR and boots
After the recent nerf (yes, that's a nerf) Boots of Swiftness will reduce the W slow. It's also nice if you want to roam mid.

You need 40% CDR.
With 5% in runes + 5% in masteries you need 30% to get to 40.
Talisman and Frozen heart give you these 30%.

Late Game :
You need to tank, so buy HP and MR.
Up your sighstone and your trinket whenever you can to give vision to your team, and denie to enemy team.
Righteous Glory is a very good way to engage a teamfight with the Talisman.
Banshee's Veil gives you a pretty nice shield that can blocks CC.

Max the grab (Q) :
Against an agressive botlane you should be under turret.
In Bronze Silver and even low gold, ennemy ADC is very often vulnerable to grabs under tower.
It's a very good way to force a flash or to give a kill to your ADC so you can hold sway over them.

Then max the fist (E) :
The combo Q+E is very effective, mostly under turret.

Ultimate lv 6/11/16

I prefer exhaust with blitzcrank. Ignite is pretty nice but it won't save your ADC.
Otherwise, you can take a kill with the ignite. You don't need kills. Your ADC does.
And flash of course to escape and sometimes for Flash + Grab (Q)

Pros :
- a lot of CC
- funny to play
- good peel for adc

Cons :
- choose the right ennemy to grab (for ex : Amumu wants you to grab him so he can ulti, so don't grab him)
- no heal/shield/movement speed for your ADC
- your ultimate is a nightmare for your ADC when he's farming

If you are under pressure :
If you can't grab easily (vs Sivir or Morgana) ask for a gank.
You are under turret, it's not that hard to gank.
You can also try to put a ward behind them so your toplaner can tp behind and kill them 4v2.
Then you can move on to the bot turret and the dragon.

If they are under pressure :
Don't forget to ward the river. You can even put a ward in front of the dragon and another in the tri-bush.
If they are under pressure, they will make some mistakes. Get ready to grab !

Positioning is very important, especially during the laning phase.
In bronze, silver and often in low gold, players have a bad positioning.
The best way to use it is Blitzcrank.
Wait the best moment to grab to best champion and you can honnestly turn the situation to your advantage.
Last tip : don't ulti to steal a kill ...

I hope that guide will help you.

I'm working on a french version. Available soon !

Peace