You can use a bonus action to speak this magic dagger's command word, causing poison to coat the blade. A hazy green glow also sheds bright light in a 40-foot radius and dim light for an additional 40 feet when activated. While the dagger is coated, it deals extra poison damage to any target it hits based on the level of the character it is attuned too. Level 1-5 it deals an extra 2 poison damage. Level 5-10 it deals an extra 2d4. Level 11-16 it deals an extra 2d6. The poison and light last until you use a bonus action to speak the command word again or until you drop or sheathe the dagger.