Book of Eclipse [SDCH-EN025] Common

Set: Structure Deck: Spirit Charmers Card type: Quick Play Spell Rarity: Common Change all face-up monsters on the field to face-down Defense Position. During the End Phase of this turn, change as many face-down Defense Position monsters your opponent controls as possible to face-up Defense Position, then your opponent draws cards equal to the number of monsters changed face-up by this effect.