Walking Archive
A symmetrical card-advantage engine wearing the body of a wall, which is the whole tension: it draws cards for every player, not just its controller, so the question is never how to break the symmetry but how to profit from it. The trick is in who is positioned to use the extra cards. The machine starts each player at one draw per upkeep and ratchets the rate upward for everyone equally as counters accumulate, so building around it means building a deck that converts raw card flow into a board state or a lock faster than the table can. That makes it a piece for a control shell with a payoff plan, not a creature you cast and forget. Defender keeps it from doing any work on offense; this is a body that exists to survive and to host counters, never to attack. The cost layer enforces patience too: three mana to land it, then (four mana) for each additional counter, with the payoff arriving on later upkeeps rather than the turn you spend. It belongs to the school of Azorius advantage pieces that would rather bury a game in cards than race it. The wrinkle worth noting is that the draws trigger on each player's own upkeep, so opponents handle their own draws and you only manage yours; the engine is shared, but the upside accrues to whoever was built to spend the surplus.

