Blast Beetle

Blast Beetles: 

Action to Cast creating 5 blast beetles, After the inital cast on your turn you may send 1 beetle to a target using your bonus action. If concentration is lost all remaining beetles turn into dust and vanish

When thrown their range is 60, Blast Beetles explode upon hitting the opponent, dealing 1d8 damage plus 1d6 fire damage to the person in the space it hit and half that much to everyone in adjacent spaces. If the Blast Beetle misses it can be instructed to tank downward where it deals 1d6 fire damage + spelllcasting modifier to the initial target and half that much to those in adjacent spaces but this time all caught in the fire are entitled to a dexterity saving throw or take half damage to  the initial target or nullify it entirely if in one of the adjacent squares. Blast Beetles die during their explosion, if that wasn’t obvious, so they are single use. Additionally, these may be sent to walk into a room without being thrown and will explode when instructed to as an immediate action.