ArmorSet bonus
(1 item) Whenever you gather resources from a harvesting node, gain 1 stack of Harvester, up to 20 stacks max. Each stack of Harvester increases your chance of gathering bonus materials by 10%. Removing this ring removes all stacks of Harvester.
Harvester does not affect resources gathered with Crafting Surveys or bonus resources received during holiday events.
ArmorSet bonus
(2 items) Adds 526 Critical Chance, Increases the damage Volley deals by 430 each tick. This bonus increases by 191 every time Volley ticks, up to a maximum of 8 times.