Sillva, Warlord of Dark World [EEN-EN023] Ultimate Rare BT13-034 You can only use this

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

you can send 1 WATER monster from your Deck to the Graveyard to add 1 "Genex Controller" from your Deck to your hand

Set: Elemental Hero Collection 1 Card type: Normal Monster Rarity: Secret Rare Attack: 1000 Defense: 1000

You can only activate 1 "Special Schedule" per turn

and/or Mugenshi: RELEASE from your graveyard into your deck

Sillva, Warlord of Dark World [EEN-EN023] Ultimate Rare BT13-034 You can only use thisSet: Elemental Energy Card type: Effect Monster Rarity: Ultimate Rare Attack: 2300 Defense: 1400 If this card is discarded from the hand to the Graveyard by a card effect, Special Summon this card to your side of the field. If this card is discarded from the hand to the Graveyard by your opponent's card effect, your opponent selects 2 cards in their hand, and returns them to the bottom of their DEck in any order.