Wizards of the Coast said that further information would be released during its upcoming Wizards Presents stream on August 18th, which will include announcements of future Magic: The Gathering and Dungeons & Dragons releases planned for the next year
This will keep further memories from being sliced away, though it can't restore the ones already lost
When an expansion goes out of print (is no longer reprinted)
On top of that, it shuts down opposing strategies that rely on +1/+1 counters, sagas, or other incremental counters, making it both an enabler for your plan and a roadblock for everyone else
So, we added one, not a big change, but still important
Jace takes that principle of milling your opponent and flips it, giving you the opportunity to win the game if you run out of drawable cards