if I’m a current spellcaster and time-travelled to the Netherese time, would I be able to access that version of the Weave? Or my current Mystra spells patterns and components would not be able to tap into Mystryl’s designs?Yes, you would be able to access the earlier Weave; what we call arcane magic is one method of tapping the Weave. However, some of the spell effects might differ from what you're used to, in surprising ways.#Realmslore
— Ed Greenwood (@TheEdVerse) February 6, 2022
Similar.
The spell effects should be similar to how magic worked in 4e, right? I mean, magic during the post-Spellplague/pre-2nd Sundering period was cast using the old Netherese methods. The difference isn't in the spellcasting, it's localized differences in the Weave itself, from the time of Mystryl to the time of Mystra.#Realmslore— Ed Greenwood (@TheEdVerse) February 7, 2022