Staff of Nin

Six mana buys two engines stapled to one artifact: a passive that refills your hand every upkeep, and an activated pinger that taps to deal a damage at instant speed. The card-draw half is the part that ages well, because it asks for nothing in return: no payment, no creatures, no triggers beyond surviving to your next turn. That makes the Staff a colorless answer to the resource attrition that grinds out long games, the kind of advantage engine that mono-color and odd-color decks reach for when blue's draw spells are off the table. The ping is the secondary mode, but it is more than a rider, and it comes online immediately: an artifact has no summoning sickness, so the Staff can tap to deal a damage the same turn it resolves. One damage on tap, every turn, with no targeting restriction, kills the mana dorks and one-toughness utility creatures that other slow decks lean on, and it does so without spending a card. The two abilities also share a quiet design logic: the damage is the floor that keeps a topdecked Staff relevant when you are flooded, while the draw is the ceiling that wins the longer game outright. The cost is the honest part. Six mana for an artifact that earns its keep only across multiple turns is a real tax, and it is why the Staff lives in the decks that expect to reach the late game on their own terms and want a permanent, recurring source of cards and removal once they get there.