stronghold booster box GameGenic Deck 200+ XL Blue The flaps are detachable and can be attached to the back of the box Stronghold Booster Box | eBay

Karrthus, Tyrant of Jund There's a couple of reasons this throwback still gets played in Commander

The last of the new Archetypes is called Ryu-Ge and includes one Sea Serpent, one Wyrm and one Dinosaur monster destined to fight to determine the one worth to ascend into a new Dragon that will rule the next world

Apparently the front was removed from a common (real) card with a razor, and then a very high quality printout was pasted on the real back

This lets you reveal cards from the top of your library until you hit a card that costs X or less and then cast that for free

I picked up several copies of the card for $5 apiece less than a year ago