Given the best void effects are all card draw or recursion, and enabling void often relies on taking multi-spell turns, RB is yet another archetype looking for a lot of strong, cheap playables which can reliably trade with opposing cards
Short version: in the current Standard environment, play Sphere of the Suns if you want to play 4-drops early, play Koth of the Hammer if you want to play 6-drops early or get a lot of mana for a big X spell
Null Chamber Leaning into politics, with Null Chamber you name a problem card, an opponent names a second, and suddenly two key tools are shut off until the Chamber is removed
It is for this reason I value tempo so highly in cube and have found cards like Fact or Fiction and other high end pure value cards to be hard to use and far weaker than in other formats
Decks that were already strong could now beat you in a whole range of new ways without ever having to tap out for more than a three mana-creature, and once that creature was on the table it felt like it both dramatically slowed your ability to attack and made the situation worse on a continual basis as every turn that went by meant another card (or often cards) available to the opponent to make Dr
