As an action, you can create this bomb. As an action, a creature can throw this bomb at a point within 5 meters, where it explodes on impact. Smoke spreads to fill a sphere twice as big as normal for the duration. The smoke spreads around corners. A creature with darkvision can’t see through this smoke. Non-magical light, as well as light created by spells of using equal or less energy, can’t illuminate the area.