Tactical Teamwork features the Seven Dwarfs as a major thematic selling point, alongside item synergies that want players to think carefully and setup draws or banishes
In the past reprints came as a steady drip - sometimes too slow of a drip - but now they are a flood and even the best and most in-demand cards won't maintain much value they are reprinted multiple times
Lutri, the Spellchaser Its hard to have a card banned in Commander at the top of this list, so Lutri, the Spellchaser chills at number two
Despite the card coming into play tapped after the third turn of the game, the sheer amount of versatility it offers more than makes up for this drawback
Old-Growth Troll I feel like you could make a Vince McMahon meme where you start with a 4/4 for 3, add trample, and then give it a way to boost your mana base until you want to bring back a token with 4/4 power/toughness and trample
If you can manage to be the only other of two players left in the game, with a Spore Frog available to you, you're practically untouchable