Orton, although dissatisfied with his improvements, did not imply that his amendments to the rune were genuinely bad; it was just that he held himself to exceedingly high standards.
In fact, his improvements in the runic department, even excluding the rune itself, merely represented breakthroughs in the magic energy domain, and could be considered among the finest today!
Just as Orton himself had mentioned, the essence of mana was magic power, and since magic power had attributes, magic energy should also possess attributes. However, this remained a theoretical possibility, as no one had successfully applied it in practice.
Logically, such elemental conversion shouldn't be that difficult, and indeed it wasn't. The real technical hurdle lay in the medium, meaning the Magic Stone.