Where to Get Exceptional Verisium in PoE 2

Exceptional Verisium is one of the crafting materials added to Path of Exile 2 in the Runes of Aldur league. Unlike regular Verisium, which is used to transform gear into Runeforged versions, Exceptional Verisium can turn specific Ezomyte or Kalguuran gear into Runemastered items, which offer vastly superior stats compared to their base versions. The ability to make Runemastered gear makes Exceptional Verisium very valuable in PoE 2, so here's a guide on where to get them and how to use them.