System Down [CRV-EN041] Ultimate Rare BT3-033 You can only use this

You can only use this effect of “Ride of the Valkyries” once per turn

This card cannot be used as a Synchro Material Monster

Instant (5):

Set: Sun & Moon: Unbroken Bonds Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

Set: Cybernetic Revolution Card type: Effect Monster Rarity: Ultimate Rare Attack: 300 Defense: 200 This card cannot be Normal Summoned or Set

System Down [CRV-EN041] Ultimate Rare BT3-033 You can only use thisSet: Cybernetic Revolution Card type: Normal Spell Rarity: Ultimate Rare Pay 1000 Life Points. Remove from play all Machine Type monsters on your opponent''s side of the field and in their Graveyard.