Can you cast feather fall in time with 1 reaction, considering the “Xanathar’s guide” rules on falling?

Top Character Names for Xanathar’s Guide to Everything in DnDBeyond

Top Subclasses for Xanathar’s Guide to Everything in DnDBeyond

Ranger Horizon Walker, is Planar Warrior ability need to use bonus each turn to deal Force damage?

Are magic items excluded from benefiting from an adamantium coating via Xanathar’s rules?

Is it possible to Twin Spell Dragon Breath or Booming Blade?