This is Grell's most dangerous experiment yet, so he's relying on the wisdom of the ancient Byzantine engineers.
This has nothing to do with Hermitage. Make this card. I costed it and worded it incorrectly, I believe. Purge 2BBInstantRemove target player's graveyard from the game. Search that player's library for all cards with the same name as each card removed this way and remove them from the game. That player shuffles his or her library.
Empty your mind.