Here is the build guide link for all the required info: https://www.pathofexile.com/forum/view-thread/2875553

Pob link of the character you see in the video: https://pobb.in/Kocsg0XcVQ7V (22.91m Pinnacle DPS, 773k EHP, 5.3k life)

Lacerman build (Lacerate Gladiator) is a combination of easiness to play and being able to do all endgame content at a high efficiency thanks to its fast clear speed and bossing capability. It’s an all-around build designed to do your daily stuff like mapping, delving, simulacrum, uber labs, uber endgame bosses, etc. efficiently. It's also very easy to manage, a complete beginner-friendly build with only 3 skills to use; Leap, Lacerate, and War Banner. Even if you haven’t played Path of Exile before, you’ll have no problems managing this build in a short time.

Build is mainly based on clearing huge packs of monsters both as fast and easy as possible, using Leap and Lacerate. Attack speed on everywhere possible makes us travel fast with Leap and turn Lacerate into a machine gun, then blast the whole screen with the build's huge AoE and explosions combined. Our Lacerate auto-aims as well with Multistrike, so no need to even target! Then Soul Taker on offhand makes attack skills don’t spend any mana, which allows us to Leap and Lacerate unlimitedly and also allows us to fill up our mana reserve with buffs. As well we use a 34 seconds long War Banner while bossing, doing high delirious maps and also whenever extra damage is needed.