Some notable aura gems include:
7 Toxic Rain
To make auras even stronger, consider grabbing aura effect Cluster Jewels and reduce mana reserved modifiers on Path of exile currency gear. While aurastacking was substantially nerfed in patch 3.13, auras themselves are still a fantastic way to buff any build you're playing.
Bow characters are usually one of the worst league-starter builders in Path of Exile due to gearing issues and a lack of life nodes on the right side of the passive tree.
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6 Cyclone
Gearing is not a concern with Toxic Rain. As long as you have a bow with some sort of chaos or poison damage scaling, Toxic Rain becomes one of the game's best bow skills. Launching toxic arrows into the sky, this skill releases spores on impact, each dealing substantial chaos damage over time. Ascendancies like Pathfinder or Trickster can take this to a whole other level with their amplified damage-over-time notables and the Pathfinder's potent poison proliferation ability. Deadeye builds can also use multiple Mirage Archers to increase their single-target damage substantially.
No melee skill is quite as easy to use as Cyclone. Your character will spin their weapons while moving in a given direction. The skill has everything you'd want for a melee build: high damage, mobility, and plenty of Path of exile currency for sale ways to scale its damage.