Recently, path 2.4.2 was released. One of the major additions of this path was the new skill Blade Flurry. This skill is a dexterity/intelligence hybrid melee skill that has brought melee back into the meta game. Melee has always been considered weaker both offensively and defensively to both spell-casters and ranged attack builds. This has changed that.
Blade Flurry is a channeled skill that deals damage in stages. It deals 20% more damage per stage and it can reach up to a maximum of six stages. This means that at the final stage it can reach a whopping 120% more damage. One way to think of the damage multipliers on Blade Flurry is to compare them to the damage multipliers of Flameblast, a similar spell.
Another powerful benefit of Blade Flurry is its attack speed. Blade Flurry has 65% more attack speed. This is one of the highest, if not the highest, attack speed modifiers Path of Exile has ever seen. So lets say, you stack the insane attack speed and reach six stacks within one second (very easy to attain). Blade Flurry unleashes another 6 stacks when you release the skill! This is what makes this skill gamebreaking. It deals massive “ranged” damage in Area of Effect form with very fast attacks. Multiply these benefits by two.
How to Use
Blade Flurry is also very powerful because of the variety of ways to scale it. Although cheap, it can become one of the most powerful skills in the game when scaled properly. Like any melee skill, the most economical way to scale it is to go with physical damage. Blade Flurry only works with Daggers, Claws, or One-Handed Swords so the best thing to do is to find a high PDPS variant of these with at least moderate attack speed. You have to remember that it only takes your main hand weapon into account. This means you can equip either a shield, for defense, or a damage boosting weapon such as Doryani’s Catalyst.
Additionally, some uniques you may want to consider for Blade Flurry are Taste of Hate and Carcass Jack. Some support gems to use with Blade Flurry are Melee Physical Damage, Poison, and Increased AOE (or Concentrated Effect). The best way to use Blade Flurry in-game is to hold it down until you reach six stacks (or all mobs are dead) and release.