Gemcutting
Path of Exile 2

Create an area of Toxic Bloom on the ground around you. While in the Bloom, you have increased Skill costs, Regenerate Life, and your Projectile Attacks attach a Toxic Pustule, which can be Poisoned. Pustules will Detonate after a duration or when enough Poison has been applied, dealing more damage based on the stored Poison damage and applying Poison in an area around it.