The package of abilities nicely ties together, and I particularly like the design of Spinning Piledriver saying noncreature, nonland permanent. Im not at all a fan of cards like Grave Pact, since I think they lead to battlefields where people are locked out of playing their commander, so Im glad that Zangief sidesteps that and instead forces a sacrifice of an artifact, enchantment, or planeswalker
As far as abilities go, Eggnoggers Stache fits well in counter-based and go-wide aggro decks
Hylda of the Icy Crown with a shout out to Sharae of Numbing Depths Another legendary Azorius Commander
Goblin decks are able to spam out tons of creatures, giving you tons of opportunities to dish out a huge amount of damage very quickly
Before long, everyones permanents will be shuffled about the board
Sisays great for decks that want to assemble a particular combination of legendary cards, like Gaea's Cradle, Nykthos, Shrine to Nyx, or Elspeth, Sun's Champion