That being said, Im always excited about not having a maximum hand size on Turn 2
Some of Magics most iconic cards will receive this treatment, including Ponder, Deathrite Shaman, Path to Exile, and many more
A well-timed Containment Priest can flash in and devastate a reanimation strategy, preventing a huge creature from hitting the battlefield and eating the reanimation spell that was targeting it
A Forked Bolt that costs one mana more but has more flexibility already seems like a strong card, but Ice really is the, err, icing on the cake
As for Wizards and Cats, which bring up the middle, Wizards has the single best commander in the entirety of Commander 2017 in Kess, Dissident Mage