2017-03-14 : Each opponent in turn order may choose to sacrifice a creature, even if an opponent already chose to sacrifice a creature that combat. Desecration Demon will have a maximum of one +1/+1 counter put on it each combat, no matter how many creatures were sacrificed.

2017-03-14 : Players won’t know which player or planeswalker Desecration Demon will attack, if any, when deciding whether to sacrifice a creature.