Runic Magic is definitiv a copy of clockwork magic. Hard to tell whever it was intentionally or not, seeing how Matt fumbles some of his sublcass abilities. However, Glyph of Aegis has nearly the same wording as the first time this subclass was released in the original Tal'Dorei Campaign Guide, back in 2017, which is of course several year before Tasha's. Just wanted to correct that assumption, otherwise great review and series.