Polymorphed creature at 0 HP

@JeremyECrawford Does a polymorphed creature revert to its original form when drops to 0HP by suffocation, or it dies outright? #dnd5e — Nacho Girbés Llácer (@NGirbes) December 2, 2015 The target of polymorph reverts to its true form when it drops to 0 hp or dies, regardless of cause. #DnD https://t.co/KYjgn6jmgp — Jeremy Crawford (@JeremyECrawford) […]

Polymorph and languages

@JeremyECrawford if a PC is polymorphed into a troll (by polymorph spell) does PC retain languages, or can only speak giant? — David Pozorski (@DavidPozorski) July 7, 2015 If transformed by the true polymorph spell, the creature would speak what the new form speaks. https://t.co/Tm8MEOc4do — Jeremy Crawford (@JeremyECrawford) July 8, 2015

Permanent polymorph

@JeremyECrawford If a PC gets true polymorphed and it becomes permanent, what happens to the character? — Derek Stucki (@derekstucki) June 5, 2015 It's up to the player and the DM. I'd let the character stay in the game if the new form wasn't boring or irksome. https://t.co/baXoucbdiP — Jeremy Crawford (@JeremyECrawford) June 9, 2015