All other zones are shared : There's a single battlefield, exile zone, stack, and command zone, and all players share their use
Aura Barbs (previously mentioned) will also smash pretty hard to the dome if an opponent has too many enchantments
A 3/4 with flash and reach is nothing to scoff at for three mana, either, and itll help lock up games after youve hamstrung your opponent
Lets do a little Prototype lightning round of the better examples to kick things off: Autonomous Assembler Likely better in multiples, which doesnt really do much for us here in Commanderland outside of goofball Assembly-Worker decks
Are Glorybringer, Stormbreath Dragon, and Thundermaw Hellkite actually better than Goblin Ringleader, Imperial Recruiter, Seething Song, or Empty the Warrens