Dueling Grounds Dueling Grounds is a great way to slow down the game by limiting attacks to just one creature per turn
flipping a card face-down doesnt cause it to change zones, so it doesnt go back to the command zone unless somebody trades for it
(Equipment, Auras you control, and counters are modifications.) Legendary Creature - Goblin Samurai Haste (CTRL to add secondary) Land Path of Ancestry This land enters tapped
In practice the effect is pretty underwhelming for a casual environment, but I think in practice this could potentially be a disruption piece in high level play
In case the virtual goad isnt quite intense enough, Eon Frolicker just wrecks players
Ideally youd like to pass this between yourself and another player, but I could see games where your opponents just play keep away with your commander for much of the game while drawing a bunch of extra cards, which seems like a pretty big downside that you could mitigate to some degree with cards like Homeward Path and Sword of Hearth and Home