The Ninja trains with a blindfold. Do you?
The Ninja always prepares a few smoke bombs ahead of time to get out of sticky situations. They can fill a room with smoke in an instant and last long enough for the Ninja to make an escape or find an opening for attack.
You start each Game with three smoke bombs. Spend an Action tossing one at your feet to create a cloud of smoke with a 20-foot radius. Anyone caught inside (including yourself) suffers a -3 dice penalty for any Action requiring sight. The effect lasts for 3 Rounds.
You may craft one smoke bomb per day, but there may never be more than three in existence.
Source Name - Smoke Bombs