Ember (item), BedWars Wiki

An ember is a type of currency that was added in the August 27, 2021 update. It can be used to upgrade the flamethrower. Players burnt by a flamethrower will become brittle. After a player using Pyro kills a brittle enemy, they will receive an ember. Ember can be used to upgrade a player's flamethrower. Embers were used to be called "Char" Miner could obtain a ember from breaking a petrified player. This was patched almost immediately after release.

Ember & Lumen Kit Bundle (permanent), BedWars Wiki

Ember (item), BedWars Wiki

Nyx, BedWars Wiki

Roblox Bedwars commands – a full list of all the spawns