King's Knight [LCYW-EN017] Ultra Rare 239 you can send 1 Spell

you can send 1 Spell or Trap card you control to the Graveyard to change the target to this card

then inflict 300 damage to your opponent for each card sent to the opponent's GY by this effect

Set: Sun & Moon: Celestial Storm Type: Psychic Rarity: Secret Rare Retreat cost: Colorless

Set: Sun & Moon: Base Set Type: Metal Rarity: Ultra Rare Retreat cost: Colorless

and/or an effect that Special Summons a monster(s)

King's Knight [LCYW-EN017] Ultra Rare 239 you can send 1 SpellSet: Legendary Collection 3: Yugi's World Card type: Effect Monster Rarity: Ultra Rare Attack: 1600 Defense: 1400 When this card is Normal Summoned, While you control "Queen's Knight": You can Special Summon 1 "Jack's Knight" from your Deck.