Junk Sleep — Ruling
Effetto 0
- This card can be activated at any time except during the Damage Step.
Effetto 1
- This card's effect that changes all face-down Defense Position monsters you control to face-up Attack Position is an effect that activates on the field. (It does not target. It can be activated optionally if your opponent Normal or Special Summons a monster(s), except during the Damage Step, and as part of the same Chain Link as the card's activation.)
Effetto 2
- This card's effect that changes all monsters you control to face-down Defense Position is an effect that activates on the field. (It does not target, can be activated optionally during either player's End Phase, and as part of the same Chain Link as the card's activation.)
Fonte: YGOResources