Change all Effect Monsters on the field to Defense Position. Until the end of this turn, the original DEF of those monsters becomes 0, also their battle positions cannot be changed.
Rulings
Individual Card FAQs
"Curse of Anubis" does not apply to monsters that are Summoned after "Curse of Anubis"' effect is applied.
If "Book of Moon" is chained to "Curse of Anubis" to flip a monster face-down, the effect of "Curse of Anubis" is not applied to the monster that was flipped face-down.
Trap|
Normal