Each new MTG set normally contains somewhere between 200 and 300 cards
Modern-day iterations of these Dual Lands will have some type of drawback to using them, either by paying life for them to come into play untapped like the Shock lands, or more commonly, not having a basic land type associated with them
So, I added in potential planeswalker Ral Zarek, featured in the Duels of the Planeswalker game
Reprints with different frames (pre-Eight Edition frame versus the Modern card frame) or art are valued differently and I have an inkling that Commander-playable cards with a miracle border would possess a higher collectors appeal based on the merit of being printed with a border found only in Avacyn Restored
The average CMC of a deck is also a good reference point, with burn and aggro decks having a low average CMC and midrange decks having a higher CMC.
Another Aetherdrift addition that pairs perfectly with The Underworld Cookbook is Marauding Mako