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

I would assume that casting a spell would require a minimum Intelligence

If the caster polymorphs themselves into an intelligence 1 or 2 creature, why it doesn’t interrupt concentration on spells?

When one has invisibility cast upon them unknowingly, do they know they’re invisible?

Wait, so could you duel wield loaded hand crossbows?

When you take the Attack action, is the trigger for the two-weapon fighting bonus action attack the entire Attack action?