Artifacts like Urzas Sylex, Nevinyrrals Disk, or Oblivion Stone warp opponents playstyles around the threat of mutually assured destruction and certainly have their place in Commander, and in the case of Sylex, tossing an extra two mana during activation to Call the Gatewatch might be just what you need to break parity following extinction
PPP - Dark Mind (30) Effect: If your opponent has any Benched Pokemon, choose 1 of them and this attack does 10 damage to it
While Monastery Mentor is probably the slam dunk best creature in Vintage, it was no slouch in lower powered formats either
In the right deck, this means you'll be swinging in with something that was previously a 1/1, and could flatten your opponents
sell these raw or in bulk instead
These Doctor Who Commander Decks are ready-to-play right out of the box with a 100-card deck, 10 Planechase cards to travel through time and space as you play, accessories, and a deck box to store it all in