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Corroding Weapon
Druid attack 29

The weapon you touch drips with acid and poison, corroding anything it comes into contact with.

Melee 1

Target: One axe, heavy blade, light blade, pick, or spear

Effect: Once per round when a weapon attack hits with the target, the target of the attack also takes ongoing 15 acid and poison damage (save ends). This benefit lasts until the end of the encounter.