Elaik's Smoke Screen

Magical darkness spreads a piece of coal you throw at a point you choose within range, to fill a 10-foot-radius sphere for a single round. While in this cloud, only you can see through it, and you gain advantage on Stealth checks while inside this cloud. The cloud of darkness dissipates at the end of your next turn. The darkness spreads around corners. Creatures with Darkvision cannot see through this magical darkness, unless otherwise specified.