Scorch Phrax holds the essence of fire. Can be harvested in places with high heat like volcanoes, undersea volcanoes, desert, forests after a wildfire caused from a magical source or reaction.
Attaching it to your armor or clothing gives you advantage on saves or skill checks to survive cold weather.
As an action, you can throw this crystal up to 30 feet, shattering it on impact. Make a ranged attack against a creature or object, treating the Scorch Phrax as an improvised weapon. On a hit, each creature within 10 ft of the intended target must make a DC 15 Dexterity saving throw. On a failure they take 4d8 fire damage and are set ablaze, dealing 2d8 fire damage at the start of each of their turns. On a success the creatures take 2d8 fire damage.
On destruction the terrain is set ablaze, causing it to be difficult terrain and dealing 1d8 fire damage to those who walk through it.
when combined with melee weapons or ammunition the next successful attack deals an extra 2d8 fire damage.
The crystal can be used to create and maintain fires hot enough to melt steel.