Xerneas EX (XY07) [XY: Black Star Promos] BW99 You can only activate this

You can only activate this effect once per turn

but while this effect is applied

Set: The Duelist Genesis Card type: Quick Play Spell Rarity: Ultimate Rare Special Summon 1 Level 3 or lower Psychic-Type monster from your hand or your Deck

Set: Legendary Collection 3: Yugi's World Card type: Normal Spell Rarity: Ultra Rare Attack: 0 Defense: 0 Destroy all Spell and Trap Cards on the field

you can discard 1 DARK monster to send 1 DARK monster from your Deck to your Graveyard

Xerneas EX (XY07) [XY: Black Star Promos] BW99 You can only activate thisSet: XY: Black Star Promos Type: Fairy Rarity: Promo Retreat cost: Colorless,Colorless