Gwenhwyfar, Queen of Noble Arms [LVAL-EN086] Secret Rare EX1-021 during your Main Phase 1:

during your Main Phase 1: You can destroy all other face-up Attack Position monsters on the field

Set: HeartGold & SoulSilver: Unleashed Type: Fire

then Special Summon that monster from your Extra Deck

1 of your “Thunder Dragon” card

Set: Shadows in Valhalla Card type: Quick Play Spell Rarity: Secret Rare Neither player can activate cards or effects in response to this card's activation

Gwenhwyfar, Queen of Noble Arms [LVAL-EN086] Secret Rare EX1-021 during your Main Phase 1:Set: Legacy of the Valiant Card type: Effect Monster Rarity: Secret Rare Attack: 300 Defense: 300 You can target 1 "Noble Knight" monster you control; equip this card from your hand or Graveyard to that target. You can only use this effect of "Gwenhwyfar, Queen of Noble Arms" once per turn. The equipped monster gains 300 ATK. Apply the appropriate effect, depending on the Attribute of the equipped monster. LIGHT: If the equipped monster would be