The Empty Rod is a material added by Hearth Well. When holding right click it can be charged into a Myst Rod. This process needs to be done a total of 3 time to fully convert the rod and deals 1 () damage to the player at every step.
If the player is holding Blaze Powder in their other hand, then it is consumed instead of dealing damage to charge the rod into a Blaze Rod. This process needs to be done 4 times and it is not possible to switch rod types once it has been partially filled.