@TheEdVerse Hello again. Thanks again for taking the time answer my question about EHM.

I had another question now, about Mythals. In 5e, is there still a way to make Mythals? I'm assuming yes through High Magic, but did Mystra remove Epic Spells and Mythal Seeds?

— RedNoBlue (@RedNoBlue) January 5, 2020

So far as is known, no one has recently created a Mythal. Some Weavemasters and Chosen of Mystra have tinkered with/repaired existing ones. In theory, crafting a Mythal is still possible, but the problem lies in assembling 2)
…enough sufficiently powerful AND SKILLED participants. Such mighty wielders of Art tend to be very busy, disinclined to work with others except on their own pet projects, and paranoid about being in a known place at a known…#Realmslore

— Ed Greenwood (@TheEdVerse) January 5, 2020

3)
…time side by side with others mighty in magic. Mystra, like all the gods post-Sundering, has “stepped back” from direct interactions with mortals, and is working more through her servitors (including the Chosen), clergy, 4)
…and manifestations. ALL of the incarnations of Mystra have preferred to work more on a personal basis than with a formal “no one can do this now” approach. So you might be granted the ability to understand, master, and…#Realmslore

— Ed Greenwood (@TheEdVerse) January 5, 2020

5)
…wield an Epic Spell, while at the same time Drang the Deathdealer in the red robes next door might not, because Mystra thinks Drang will use the spell more to destroy or oppress others than to spread the use of magic to all 6)
Crafting a mythal requires the deepest trust and cooperation—and too few wielders of the Art are capable of making themselves so vulnerable, and being so generous. (Sigh; like too many of us, in life.)#Realmslore

— Ed Greenwood (@TheEdVerse) January 5, 2020

A follow-up, friend Ed. In some of the 3E Realms fiction, mythals were tied to keystones. As far as I know, this was new and had not been previously mentioned.

So was this a new thing, or something not previously discussed, or is it only some mythals that are like this? Only some mythals are like this. Mythals tied to keystones are rarer than those that are not. At the time, this wasn't new in Realmslore, but was new in published Realmslore. Some of the root lore literally takes decades to reach print.#Realmslore

— Ed Greenwood (@TheEdVerse) January 7, 2020