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 only activate 1 "Special Schedule" per turn

If Plunder Run is played from arsenal

If Aether Wildfire is played during an opponents turn

you can select and activate 1 of these effect: •Destroy Spell or Trap Cards on the field up to the number of "Elemental Hero" and "Destiny Hero" monsters you control (not counting this card)

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.