Unearthed Arcana Analysis: Mystic Subclasses

Unearthed Arcana returns for 2026, with new subclasses for the Monk, Paladin, Rogue, and Warlock. These are new subclasses, not returning ones from 5e, which i'm really happy to see. Also, when I first saw "Mystic" subclasses, I thought we're getting another psionic-themed UA since the Mystic was originally what the Psion was called, but…