A shard of magically condensed energy, these raw empowered crystals carry with them aspects of specific elements and can do wonderous things either on their own or in conjunction with magic or crafting.
Frost Phrax holds the essence of ice. This phrax can most often be located on Icebergs, seacliffs, large water formations near to high-magic zones.
Attaching it to your armor or clothing gives you advantage on saves or skill checks to survive extremely hot 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 Frost 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 cold damage and are petrified in solid ice. Any creature petrified this way will thaw in 1d4 hours without outside interference, unless the environmental temperature would keep them on ice. On a success the creatures take 2d8 cold damage.
On destruction the terrain is covered in ice, causing it to be difficult terrain and those that walk over it must make a DC 15 dexterity saving throw. On a failure the creature falls prone.
when combined with melee weapons or ammunition the next successful attack deals an extra 2d8 cold damage and is used up.
The crystal can be used to maintain temperatures below freezing and does the same in any container it is put in.