Panopticon

The purest card-advantage engine Planechase ever printed, and the plane that makes the group most nervous the moment it hits. Where most planes offer a conditional edge or a symmetric wrinkle, this one hands out a raw stream: a card on arrival for whoever planeswalked here, a card every draw step for whichever player is active while it stays face up, and another every time the chaos symbol comes up on the planar die. The design leans into steady acceleration; the arrival draw belongs to whoever planeswalked here, while the ongoing draw follows the active player, and the only pressure valve is the die itself, since a planar roll can boot everyone off it before the advantage snowballs. That tension (a runaway engine gated only by a random walk) is the whole reason it plays the way it does at the table: the longer it survives, the further ahead the table's card counts climb, so the incentive to keep rolling and the fear of what the next roll brings sit on top of each other. It asks nothing in deckbuilding and rewards nothing in sequencing beyond being the one who got here first, which is exactly what makes it feel like a resource faucet left running rather than a card you build around.