Explosive

Uncommon

A bundled explosive alchemical preparation. It can be detonated by dealing 1 fire or lightning damage to it. As an action, a packet of this explosive can be accurately thrown 20 feet, but will not detonate on impact (usually). When it detonates, all creatures within 15 feet of the target point must make a Dexterity saving throw with a DC equal to the crafter’s Alchemy DC. On failure, they take 2d8 fire + 2d8 thunder damage, or half as much on a success.
Creatures in range of more than one explosive take damage only from the highest damage effect.
  You can fuse your explosives. When fused, intentionally dealing fire damage to the explosives (or otherwise lighting the fuse) causes it to detonate on a delay, selected from: short (the end of your turn), medium (the start of your next turn), and long (2 rounds, at the start of your turn).