I'm sorry if I got this wrong, but I'm REALLY confused:
The card is to prevent all creatures' abilities and passives for 1 turn. Sure you can disable poisonous passive, but how can you devour it with your Otyugh when all abilities are disabled?
kind of unrealistic, but possible with playing Oty and then SoR after playing this card?
Still doesn't work, 'summoning sickness' is there even with SoR, since Oty is not a time card.
Unless I completely missed something, SoR still removes summoning sickness from all elements (hence readiness). The time-specific bonus is allowing two uses.
Whether or not this matters depends on whether the card is an effect applied to all creatures in play at the time the card is cast, or whether it is a field-wide effect that lasts until the next turn.
if it was a field-wide effect that lasts until the next turn then it would have that greek building symbol in the bottom right (like sundial), not the electricity (like any other card that instantly goes to the garbage pile)
so it does not make you totally safe from opponents creatures next turn, as he then can in return play a creature + SoR if I understood correctly. At least for time creatures according to the post above