Fighter/Brawler: improvised weapons and unarmed strikes
Barbarian/World tree: "tree that connects all worlds" - taps into that power; can pull people in using those mystic roots, and can even gain access to planar travel and teleportation. Roots reach everywhere.
Spell caster changes pertain to previous casters in UA 6.
Back to class spell lists.
Those non-class list worked but other classes shifting to those lists damped their identity. For Ex the wizards biggest list of spells was diminished.