Falters are too situational to run without a buyout, and MDFCs are the ultimate buyouts
Firstly, as this Ajani's +1 ability prevents target permanent from untapping during its controller's next untap step, you can easily deprive an opponent access to one of the lands they'd used during their last turn
Memories Returning is essentially a draw three for 4 mana, which is particularly good in the blue/red archetype
Most types that have an Energy acceleration method usually stick with their own typing
Gholdengo ex and Gardevoir ex are the first two decks that I want to focus on first, as they are CLEARLY the best two decks in standard
We have made substantial progress on those, but I want to make sure to put the right foot forward when we publish them, so I've delayed making anything public