The most important, however, is certainly Greymond, Avacyn's Stalwart - the rebranded version of Rick Grimes
Seriously, between this set and Eternal Masters , aspiring new EDH players may all just end up flocking to playing white decks of some kind
With the number of cards coming into MTG , it may be sooner than you think
Captain America, Team Leader Cayth, Famed Mechanist Commodore Guff Ghost-Spider Inspirit, Flagship Vessel Nia, Fabled Skyclimber Optimus Prime, Hero
Not only can it wipe out aggressive early boards and most mana rocks, but it also gives you color-filtered mana for doing so, effectively making the card free, or a ramp piece, in many situations
This is any card that has some variation of you win the game. Thassas Oracle and Approach of the Second Sun are examples of this kind of finisher