We're returning to Lorwyn and Shadowmoor - and with it a plethora of both new and returning mechanics, all of them explained here
How to defeat a planeswalker
Since there are so many strong monocolor mana ramp options and mana rocks to choose from across Magics history, a multicolor card has to really bring something special to the table to stand out, especially if green is in its color identity
The Cipher spell needs to resolve to be encoded onto a creature
Magic: The Gathering players tell The Independent that it makes sense Vance would pick that one
Lastly, while not Fracture Foils, the borderless printings of Sire of Seven Deaths, Niv-Mizzet, Visionary, and Liliana, Dreadhorde General all sell for around $100 if you're lucky enough to open one