The Rake

Blades like this one were a favorite of the Spider Clan, a now-extinct group of Monks who valued a combination of stealth and killing power. This fist weapon embodies their ideals.
This weapon folds down into a tightly-compact steel bracelet when not in use. When this weapon deals damage, it deals an additional 1d6 poison damage, then the target makes a DC 10 Constitution Saving Throw. If the target fails, they are poisoned for 1 round.