King Suleiman ($161) King Suleiman was probably quite good when it was first printed, and djinn/efreets were more common to see, but these days its just pure nostalgia (and Reserved List, obviously!)
There are a total of 127 card types to collect with the following rarities
Eldrazi Conscription When it was first printed, Eldrazi Conscription was the biggest and baddest aura around, and it still is 13 years later
Since it requires a turn to go off, your opponents are going to focus their efforts on either enchantment removal or player removal, so you have to be ready to weather a storm of attacks and spells if players still have a lot of cards left in their hands
Extended Art & Pop-up Alter MTG Cards As being one of the best and easiest approaches to altering
This is, on its face, good