404

As long as 404 is in your graveyard, players can't use the internet.
When 404 enters the graveyard from play, choose target card in a graveyard. Then, search that player's hand, graveyard, facedown pile, battlefield, library and sideboard for all cards with the same name as that card, and put them in the Absolutely-removed-from-the-freaking-game-forever zone