Avalon [PRIO-EN088] Super Rare Spirit/Effect Monster You can only use this

You can only use this effect of "Crimson Nova the Dark Cubic Lord" once per turn

• Chaos Summoning Beast

change all face-up monsters your opponent controls to face-down Defense Position

Set: The Dark Side of Dimensions Movie Pack: Gold Edition Card type: Quick Play Spell Rarity: Gold Rare Target 1 Dragon-Type monster you control that was Special Summoned this turn

or if it is a Spell/Trap

Avalon [PRIO-EN088] Super Rare Spirit/Effect Monster You can only use thisSet: Primal Origin Card type: Normal Trap Rarity: Super Rare Target 5 "Noble Knight" monsters in your Graveyard, including at least 1 "Artorigus" monster and 1 "Laundsallyn" monster; banish those targets, and if you do, destroy all cards on the field.