Wooly Wonderland - Graveyard Grudge

[REQUIREMENT]When an opponent's monster declares an attack targeting your Attack Position Beast Type Normal Monster, send the top 4 cards of your Deck to the Graveyard. [EFFECT] The attack target loses 2000 ATK until the end of this turn. Then, you can add up to 4 cards sent to the Graveyard to meet the requirement to your hand.