Wands from rods

The wands I'd like to see are element based magic tools. 5 types of wands: blaze, breeze, freeze, lightning, end. A wand is crafted from an amethyst and the rod that corresponds to its type. For example: Blaze rod + amethyst = blaze wand. The blaze wand would shoot fire. I'm not really sure what an end wand would do, but I'd really like for it to be unique and interesting. Wands can be enchanted. I believe that stuff such as fire charges should be removed from the game. If the fire charge stays in the game, then it should be the wand's ammo, like arrows of a bow. The fire charge itself would be used poorly by hand or any bow. It would be best used with a wand in that scenario. I'm trying what I can to justify having both rods and amethyst in the game. If no wands are in the game...then elemental charges take over. I wonder if "end" charges could be a thing?