A double-faced permanent always has the status "face up" (see rule 110.6)
But I can see an edge case where it could be a useful addition to a 60-card deck
The market is liquid and getting more visible to buyers, which cuts both ways: it is easier to sell, and harder to overcharge on something a buyer can price-check in seconds
That gets you 24 ready-to-mix Jumpstart boosters, with every pack including 20 cards, all the lands needed to play, and at least one Rare or Mythic Rare card
When this Siege enters, it deals 4 damage to another target battle or opponent and 1 damage to up to one target creature
This is a card that slotted right into The Rock once it was printed (and got along okay with big daddy Spiritmonger, especially in Red-splash versions)