Drago Buster is a Weiß Schwarz card from 転生したらスライムだった件 Vol.2 TSK/S82-063. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Card type
Event
Side
Schwarz
Color
Red
Level
3
Cost
5
Neo-Standard
That Time I Got Reincarnated as a Slime
Card Text
If you have a character with "Milim(ミリム)" in its card name, your opponent reveals 7 cards from the top of their deck, shuffles their deck, and puts X cards from the top of their deck into their clock. X is equal to the number of climax among those cards.