(Note: This basic concept is also true for distributors, the companies that buy Magic from us and sell it to the stores.) Once upon a time, a store just had one booster to buy for any one Magic set, so that's what they bought
If two players each have a game saved on a memory card, Digi-Battles and trades can occur on one system using the "Battle with a Friend" (versus) option
You must also Tribute "Arcana" Monsters from your hand or your side of the field, whose total Level equal the Level of that Ritual Monster
As this is a control card the damage to players is a mixed blessing
It's also incredibly specific in its use, and the fact that it is only activated once in the entire anime makes it one of the most forgettable Traps in the entire game
It doesn't see much play in Commander or any tournament format, and it even has multiple foil printings (showing up in Eighth Edition along with Ninth Edition )