Hi there guys,
I'm going to show you my build to Blitzcrank.

HEALTH 423 (+95)
HEALTH REGEN. 7.25 (+0.75)
MANA 260 (+40)
MANA REGEN. 6.6 (+0.5)
RANGE 125
ATTACK DAMAGE 55.66 (+3.5)
ATTACK SPEED 0.625 (+1.13%)
MAGIC RES. 30 (+1.25)
ARMOR 14.5 (+3.5)
MOV. SPEED 300

Attack Power -40
Defence Power -80
Ability Power -50
Difficulty -60

Pros:
-Best Suport in the game till now;
-It´s Q skill it´s good to take first blood and doing ace in late game
-It's passive it's to start a time fight
-Dificult to get focused

Cons
-Way too popular champ in the game (easli banned in Draft or Ranked games)
-The Q skill it's hard to use
-Need to be patience
-Is hard to master so as to impact a game severely

Most part of my Masteries are for Gain Gold and start the game with more gold and other types of suport masteries about the Runes the are focused to let Blitzcrank more tanker, and thanks so some players i just modiefeid my runes to blitz have magic resist and I put 2 tipes of runes for magic resist that will depend of the player:
-If you can finish the game quick with your time just use the +0.74 magic resist;
-If you like to have an extended game use the +0.1 magic resist per level;
-If you whant you can have both oof them have 4 on one and 5 on the other

My items are apropried to a Blitzcrank, in the end he makes tanker and suport too.

About the Skill Sequence:
-You must max. Power Fist first because in my case my AD Cary it´s a Draven like I need to max it fisrt to Protect him or when I use Rocket Grab take more DMG to the enemies, then max Rocket Grab off course and the of course Overdrive.

In Summoner Spells you must use only:
-Flash
-Exhaust
-Clarity
and
-Heal
This ate the best Summoners Spells for a suport Blitzcrank.

-Rocket Grab is Blitzcrank's signature skill, with immense utility when used well.
-Rocket Grab has a distinctive cast sound; try casting it out of enemy sight to avoid them hearing it.
-Aim your shots from unexpected angles to increase their chances of landing, such as through an enemy minion about to die.
-Blitzcrank can allow your team to invade the enemy jungle at the start of the match due to the threat you pose with Rocket Grab.
-Avoid hitting certain champions that would benefit from getting pulled into your team as a free initiation, such as Amumu or Galio.
-At level 2, Rocket Grab and Power Fist's crowd control can easily help your lane get kills. You can also use this combination to punish enemies who towerdive.
-Mana Barrier can be a great source of survivability if itemized for, and its low cooldown ensures it is almost always up for skirmishes.
-Do not rely on Mana Barrier in the laning phase, due to Blitzcrank's low base mana and high costs.
-When you are sure that you will die (e.g. 5v1 gank to you) try avoid using too much spells in order Mana Barrier to work better. You may be saved by that way!
-With 40% cooldown reduction, Overdrive will remain on a 1 second cooldown when the ability's duration ends.
-Use Overdrive to get Blitzcrank on top of priority targets to lock them down with Power Fist.
-Static Field's passive damage is deceptively high over the course of a fight, so try to not use the active until necessary.
-You will want to use Static Field's active when you can hit most of the enemy team, when the silence is needed to interrupt an enemy channeled spell, or when it can finish off a foe.
-Blitzcrank players will generally want to max their Overdrive and Power Fist as priorities; Rocket Grab does its job at rank 1 by pulling enemies into Blitzcrank's melee range, where his other two basic abilities make him very difficult to escape.
-If your team has long-range crowd control such as Morgana's Dark Binding, it can sometimes pay off to put points into Rocket Grab to greatly increase the damage, as well as a much-desired cooldown decrease.
-As support you will want to either max Rocket Grab or Overdrive first. Rocket Grab should be maxed for shorter cooldowns and higher damage, and Overdrive should be maxed if you need to move faster. Maxing Overdrive first means you can skip boots early, and go for your GP/10 items faster. Maxing Power Fist on support Blitzcrank is almost useless, since you won't build AD, and it only shortens the cooldown.
-When playing support Blitzcrank against a squishy botlane or a botlane with low CC, you can walk up to the enemy AD carry or support instead of initiating with Rocket Grab. This can be done by activating Overdrive and using Power Fist when you are in range of your target. Then when your target tries to escape, use Rocket Grab to pull the target back in. This is almost always a secure kill, or atleast a force of the enemy's summoner spells. When you do this, make sure your AD carry follows up. If your AD carry doesn't go in with you, you will most likely lose the trade and maybe even die.

The city of Zaun is a place where both magic and science have gone awry. The unchecked nature of experimentation has taken its toll on the city. However, Zaun's lenient restrictions allow their researchers and inventors the leeway to push the bounds of science at an accelerated rate, for better or worse. It was under these conditions that a team of doctoral students from Zaun's College of Techmaturgy made a breakthrough in the field of intelligent steam automation. Their creation, the steam golem Blitzcrank, was developed to exercise judgment on-the-fly in order to assist with Zaun's hazardous waste reclamation process, since so often the conditions did not allow for human supervision. However, he soon began exhibiting unforeseen behaviors.

Over time, the scientists were able to identify a demonstrated learning process, and Blitzcrank fast became a celebrity. As is sadly often the case though, credit for the golem's creation was scooped up by another - Professor Stanwick Pididly - though most now know the truth. In the wake of the ensuing legal maelstrom, it became evident that neither party truly had the steam golem's best interests at heart, and Blitzcrank humbly petitioned for personal autonomy. Backed by overwhelming support from the public, it took the liberal Council of Zaun only a few weeks to declare Blitzcrank a fully-independent, sentient entity. A unique being, the golem left Zaun, distressed by the controversy and feeling there was no place he could fit in. His travels led him to the one location in Valoran where unique beings have a place - the League of Legends. Fortunately, he was easily able to adapt his design to suit the rigors he would face on the Fields of Justice.

Though Blitzcrank may batter anything that stands in his way, he really has a heart of gold... encased in a framework of iron... in a carapace of steel.

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This is the end of my Blitzcrank build, I hope you guys have enjoid so coment and rate up ;).