Bitter Chocolate, Gandiva

[Auto] Alter Force (When this card appears, you may put a card in your Trash face-up under this card as Force.)
[Auto] At the end of your turn, if this card's Force is a card with "Gandiva" in its card name, you may remove 4 cards from the top of your deck from game. If you do, deal 6000 damage to all of your opponent's Z/X on Square.