Although it is a risky play, as phasing your creatures out leaves you totally open to attack, in many situations, its part of the reason why cards like Teferis Protection and Guardian of Faith see so much play
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
While it hasnt been officially confirmed as the Headliner card for Final Fantasy, it looks like a likely candidate based on today
So cards like Command Beacon (not in this year's decks, but still a popular option) can fetch either one of your commanders, but not both
Undergrowth Recon Undead land Whether youre using fetch lands, an Evolving Wilds or just milling your own library, MTG is a game where lands often end up in the graveyard