This will let you look at the top card of your library until it's destroyed
That nostalgia value wins every time
Emberheart Challenger also has the Valiant ability, which states that whenever it's targeted by a spell or ability you control for the first time in a turn, you exile the top card of your library and can cast it until the end of that turn
Once we came to that, it meant all of our saga creatures were also going to be enchantments, so obviously the summoners had to care about enchantments in one way or another and different summoners had to do that in different ways. As both saga enchantments and creatures, summons in the Final Fantasy set can act like a normal creature while they remain on the board
I can only judge these cards based on how they work within Magic and Commander at large, though Ive seen plenty of people excitedly discussing how these cards fit within the lore of Doctor Who
The current Standard format has some of the most expensive Magic: The Gathering cards in recent memory