sword art online union arena booster box Arena: Vol.2 [UEX07BT] including Kirito Union Arena: Sword Art Online

As long as the table is smart and doesnt block the 1/1 commander so it never dies, it can be a Skeleton for as long as you need

Pokmon: Abyss Eye Japanese Booster Box

9 This Salamandra Card Is Instant Fusion and Book of Moon Put Together Maze of Millennia Jan

A player might also visit their local game store and find dedicated Magic players or entrepreneurs who will buy card lots

While they're not critical to the win condition, other Exodia cards won't hurt your deck

By Tributing a Wightprince you control during your opponents turn, you can Special Summon Wightprincess from the GY, in order to send Wightprince from the Deck to the GY, allowing you keep raising the ATK of King of the Skull Servants further and further.