You gain a +1 bonus to attack rolls and damage rolls made with this magic weapon.
You can take a Bonus Action to magically coat the blade with poison. The poison remains for 1 minute or until an attack using this weapon hits a creature. That creature must succeed on a DC 15 Constitution saving throw or take 2d10 Poison damage and have the Poisoned condition for 1 minute. The weapon can’t be used this way again until the next dawn.
RollQuest summary +1 dagger. Bonus Action, 1/dawn: coat with poison (1 min); next hit forces a DC 15 CON save or 2d10 Poison damage + Poisoned 1 min.
RollQuest ships the D&D 2024 SRD as a content pack, on a 5e character sheet that does the maths - roll from the sheet and let the numbers work themselves out. Free to start.