I am really disappointed that you believe another NPC needs to be added to the game, especially the desert, standing next to an unnatural "sand hopper" please, for the love of all that is good and natural, continue with the original idea.
If the issue therein is the ability to abuse the materials/exp gained for casting, prevent it.
Prevent abuse by only allowing a maximum of 3 giant seaweed and 1 10kg block to make on average 28.8 molten glass per cast, if more base material is present in the inventory, unnoted, when cast, it should be destroyed, providing no experience, or molten glass as it *(was ruined in the process due to the nature of the spell, only a certain threshold can be utilized before spoiling excess material) preventing massive xp chunks for simply just casting the spell and having no care for the molten glass the materials produce.
21-Feb-2019 23:24:17