Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
the passive blitz is When Blitzcrank life is brought below 20% health he activates Mana Barrier. Mana Barrier can only occur once per minute. This creates a mana shield with 50% of his mana, lasts 10 seconds and refunds any unspent mana.
You charge in gank, Throw all your skill, when your shield active, you have another 3000 life! you have 10 second for go away and let your team kill !!!IT WORK!