Junk Sleep

If your opponent Normal or Special Summons a monster(s): You can change all face-down Defense Position monsters you control to face-up Attack Position. During the End Phase: You can change all monsters you control to face-down Defense Position. You can only use each effect of "Junk Sleep" once per turn.

Type

Continuous Trap

Monster type

Continuous

Archetype

Junk

Ban list (TCG)

Unlimited