Normally you loose a huge amount of option density with that transition however you also gain loads of option density with the flashback aspect, all be it options in a rather different form
As already mentioned, ACE SPEC cards are making their grand debut in Temporal Forces
It feels, perhaps paradoxically, like a more direct representation of its subject than the older, more organic images
Add in the number of useful enchantments which can easily be cycled (including Cast Out, Shark Typhoon, and Decree of Silence), and you can appreciate the kind of power Replenish unlocks
Collectors, in particular, could find great value in the Illustration Rares and alternate card designs
Turn 2 win capability, and yes, I have had this godhand go off before, as it only needs 5 cards in hand to go off on turn 1