Night of Souls' Betrayal

• WWizards of the Coast2017-11-17
  Official Ruling
  If a second Night of Souls’ Betrayal comes under your control, you’ll put one into its owner’s graveyard due to the “legend rule” at the same time that any creatures getting -2/-2 are put into their owner’s graveyard for having 0 or less toughness.

Rulings via Scryfall