Rather than include alternate reanimation targets in the sideboard, this sideboard is entirely cards that dont rely on the graveyard, so you can focus on your Ephemerate value creature plan while having discard and Prismatic Ending / Skyclave Apparition to fight against graveyard hate
Finally, the beta version of the Commander Bracket system was presented today during the WeeklyMTG live stream
Without the need to waste card slots on land and the ability to cast occasional worthwhile spells you could put a lot of old school decks under tremendous pressure as they were stuck with lands and removal that didn't impact the game
These are used, in combination with outer sleeves, for double-sleeving
But it's a really interesting and unusual uncommon, one that can go in a number of different directions
Even though the game was said to have a low confrontation level it still has a combat system (challenges)