The Almighty Beam Fused Zamasu (P-011) [Promotion Cards]

Product Details

[Union-Potara] BB: "Goku Black" and "Zamasu" (Place this card in Active Mode on top of the 2 specified cards stacked together)
[Auto] When you play this card, if your Leader Card is "Zamasu", choose up to 1 of your opponent's Battle Cards, and place it at the bottom of their deck. (Cards stacked under the card are placed in the Drop Area)