Start with the amount of damage being dealt to the creature and determine what is "lethal." This is the creature's toughness minus the amount of damage that it already has marked on it, but ignoring any replacement or prevention effects that will modify this damage
Higher value cards have better buylist% but you can still get a lot more money selling on your own so it might be worth your time
um die ursprnglichen 3 Cyberfinsternis -Monster zu verschmelzen, um Cyberfinsternis Drache zu erschaffen, oder verwende berlastfusion, um stattdessen 5 Cyberfinsternis -Effektmonster zu verschmelzen, um Cyberfinsternis Dunkelheitsdrache zu erschaffen
It appears in the main set of Celebrations, and fetches a pretty penny
The artwork is a straightforward but striking depiction of the Ghost-type icon, and when paired with the fireworks finish, its a card that turns heads