11: March of Swirling Mist This is another weird one that I dont personally have a lot of experience with, but I know its popular and others swear by it
Dragonkin Berserker I think this card is eminently playable, he makes dragons, which costs 5, but since he reduces the coast of boast abilities by 1 for every dragon you control this could easily get nuts, especially in a set with a bunch of changelings
In a world where Wedding Announcement exists, it's hard for me to imagine this card showing up anywhere
Chalice of the Void belongs to those unique cards from the past that would never be designed this way today
Personal opinion: Looting isnt worth spending extra mana on in Commander, so the Gateways not really getting there on its own, and the threat of this flipping is enough to attract the attention of your opponents
Taxing effects rarely see print, and when they do, theyre either overcosted for Standard (Smothering Tithe), too little too late (Suncleanser, Eidolon of Obstruction), not relevant to the format (Damping Sphere), or just not that impactful (Tithe Taker)