A tiny gunpowder bomb that has been engineered to walk, with a cute little appearance, the words, 'Down here stupid,' are written on the top of the bomb. 

For a bonus action you can place the bomb on the ground and activate it, it has two settings; immobile or walking. Setting it to walking will cause it to walk in the direction it is pointed in when set to walking mode, it has a speed of 10 ft. per round. Once activated it takes 2 rounds for the bomb to explode, enemies must make a DC 14 INT check to know if the bomb is a threat. In initiative it will take its turn right after yours. On the second round after finishing its movement, if applicable, will explode in a 20ft circle radius dealing 2d10 fire damage, all creatures within the radius need to roll a DC 15 DEX saving throw, taking full damage on a failed saved, or half as much fire damage on a successful. 

It has an AC 10 + Your INT modifier & 5 HP. 

As a bonus action the bomb can be deactivated, but if destroyed while active roll a 1d4, on a 1&2 the bomb will explode where it was destroyed and on a 3&4 will not explode and need to be remade.

Notes: Damage: Fire