Just having a creature that gives you hexproof and has some sort of defense against removal is solid, and once you factor the protection your other heroes get, its pretty good, especially when you have game-winning heroes around like Thor or Hulk
Ancient Tomb + City of Traitors While Ancient Tomb is clearly superior to City of Traitors, most decks that include the former find room for a copy or two of the latter
Gornog may seem like a surprising choice for the top spot here, but hear me out
As someone who plays a lot of Commander, I have built many decks but not kept them assembled for long
One which could serve tons of Commander archetypes, both as a central focus or a niche card package
The difference with this set is the Illumineers Quest Deep Trouble, a solo mission or a cooperative opportunity to take down Ursula in a game