And while his 2/1 body is fragile, it grows to a respectable 4/3 in creature combat, which will give your opponents second thoughts about attacking him during a game
(For example, if play had proceeded clockwise around the table, it now goes counterclockwise
Multiple Battles make it really hard for your opponent to use interaction to mitigate the natural four token pattern of Battle for Bretagard, and if you wanted to trigger the last chapter of Battle for Bretagard once, you certainly would love a second helping of copying tokens
Much of Fallaji Dragon Engines value is likely going to be from its early-game power and ability to sink mana into it
With enough haste enablers, I think that Greven could easily see a resurgence, especially with Staff of Completion now in the format and the hope that the Phyrexians will continue to provide us with cards that treat life as a resource