Faceless Haven Faceless Haven may not look too flashy, but it's consistently been one of the most-played Magic cards ever since its release at the top of the year, and that's because of how little downside there is to using it
3) Imprint I think this mechanic needs more exploration
(In most cases, this set of cards will contain just one card.) The Creation of Avacyn's second and third chapter abilities refer only to those cards, not those of any other The Creation of Avacyn
Human tokens I think can utilize this reasonably well, even if it's not breaking any molds with design
It's worth noting that, when you put the three lore counters on copies you make with Esper Terra's first three chapters, you'll also trigger the first three chapters all at the same time
Lightning, Army of One Now we're talkin'