Wait you could double cast Fireball?
I thought that Fireball is the same as Shatter, just with Fire instead of Thunder. O_o
And you cant double cast Shatter.
Haven't tested it myself but you mean you can't currently double cast shatter using Quicken? Because the problem with Larians implementation of Quicken is that it turns any spell into a bonus action spell(which it should) but also allows you to cast a leveled spell during your attack turn(which it shouldn't)
or do you mean that Shatter can't be twinned cast? That is because Shatter aint a single target spell.
