Before ranking individual venues, it helps to understand the four criteria that determine whether a location will perform
Those evaluations even go as deep as the type of deck youre building, too
During the End Phase, if this card is in the GY because it was destroyed, while in your possession, by an opponent's card and sent there this turn: You can Special Summon this card, but banish it when it leaves the field
Getting them graded can definitely help prove your cards are legitimate, but youll still need to back up their worth with quotes from other buyers, PSAs price guide and other sources when negotiating to get the best deal
Please note that this is a used item
If there are relevant creatures that need to be dealt with, it makes sense to swap your Shriekhorns for Lightning Axes