Thousand Knives [LEDD-ENA19] Common Fusion Monster and can not activate them

and can not activate them until their next turn after Setting them

Set: Legendary Duelists: Sisters of the Rose Card type: Normal Spell Rarity: Common If you control 3 or more "Harpie Lady" and/or "Harpie Lady Sisters": Target as many monsters your opponent controls as possible

add 1 "Vampire" Spell/Trap from your Deck to your hand

it loses 600 ATK until the end of this turn

You can only use this effect of "Block Dragon" once per turn

Thousand Knives [LEDD-ENA19] Common Fusion Monster and can not activate themSet: Legendary Dragon Decks Card type: Normal Spell Rarity: Common If you control "Dark Magician": Target 1 monster your opponent controls; destroy that target.