Feat: Smoke Bomb

You can add a tarry additive to an alchemical bomb to make it emit smoke. When thrown, in addition to its normal effects, the bomb creates a cloud of smoke in a 10-foot burst. You choose which corner of the target's space (or the space in which the bomb lands) the cloud is centered on. Creatures within that area have the Concealed condition, and all other creatures are concealed to them. The smoke lasts for 1 minute or until dissipated by a strong wind.