These contain more powerful and complex cards than Planeswalker Decks, therefore they are competitive and more difficult to master
Then the recently printed Offering costs two too, also sacrifices both, and this time leaves you a Map token to either draw the top land of your library for a three for one, or give a dork a +1/+1 counter
Being this large for this price at the time was an outstanding deal, even if nowadays it doesn't look like much, and the bonus life points were like adding insult to injury, causing players to wince looking at their hand that little bit more and do it again when you cast additional black spells
I am lucky to play in a group that had Sliver decks and that moved away from them
Excluding the seven we have official card pictures from earlier, that makes fifteen more cards we know about
In just the past four months, they managed to add holograms, start counterfeiting foil cards, and increase the number of cards they offer by more than 300%