Hitting no less than 3 enemies simultaneously applies Candlelight to them. Each stack of Candlelight reduces enemy Movement Speed by 4% and increases the damage they take by 2% for 5 seconds. Candlelight stacks up to 5 times, with a minimum interval of 0.5 second between two stacks. Damaging an enemy with 5 stacks of Candlelight Immobilizes them for 2 seconds (ineffective against bosses). This effect can only Immobilize one enemy every 20 seconds, and each enemy can only be Immobilized once by the Light the Lantern effect from any source within 20 seconds.
You have contracted a lung disease in a toxic area. Logging/Mining efficiency is reduced by 10%. After 20 gathering actions, your character will be forced into a coughing fit, interrupting your activities.