Barry’s Boring Ball Bearings

Rolled Chaos - When thrown, these tiny metal spheres will roll on the floor creating difficult terrain like normal ball bearings. However, when only one ball bearing leaves the pouch and the command word is spoken by the thrower, the ball is destroyed and a random effect occurs. Roll 1d4 to have 1 of 4 possible outcomes:

1. The ball bearing explodes, creating a 15ft cube of smoke. All creatures in the smoke are considered obscured, but also have disadvantage on perception and investigation checks. The explosion is loud enough to be heard 1 mile away. 
2. The Bearing spins at a rapid pace, affecting the ground where it stops. It digs a 5ft wide, and 10ft deep hole. 
3. The User Teleports within 5 ft of where the ball stopped. If it lands within 5 ft of another creature, the roller can take a free melee attack against the creature. 
4. All creatures within 10ft of where the ball stops make a DC15 Int Saving Throw, or have their Int score reduced to 1 for 1 minute. 

The user must make a Dex check of DC 8 + 1 for every 5 feet between the user, and where they want the ball to land. Using this effect during combat is considered a bonus action.