Shift allows the four cost card to be deployed for only three ink, Evasive makes him difficult to challenge, and Challenger +3 gives him a boost when he's on the attack
Sheoldred, the Apocalypse [Punishing Card Draw With Total Control] Sheoldred turns every draw step into pressure
(2017-03-14) If you somehow manage to cast Explore when it's not your turn, you'll draw a card when it resolves, but you won't be able to play a land that turn
Sylvan Library (green, 2 mana): Three cards per turn, with a life-payment trade-off
If Bandai offers a Pre-release for this set, by Pre-Ordering Awakening of the New Era [OP-05] Booster Boxes you MAY be able to pick-up some, if not all, of your Pre-Order during the Pre-Release weekend which is typically 1 week before the actual Release Date (while Pre-release supplies last)