Bonesplitter

Two mana buys two extra power that follows the creature around the battlefield, and that arithmetic is why it stayed an aggro fixture long past its origins. The cost structure carries the design: one mana to cast, one to attach, one again to move it onto a fresh body after a blocker trade or a removal spell. That mobility is the lever Equipment introduced, and few cards express it more cleanly: no conditional, no upkeep tax, no penalty in the toughness column, just a colorless rate any creature deck can afford and any creature can carry. The +2/+0 split is deliberate. It turns a one-drop into a real clock without padding survivability, which keeps the equipped creature inside burn range and lets it trade on combat math rather than stonewall as a brick. Set against later cheap aggressive Equipment, the line it draws is austere: it does not draw a card, gain life, or grant evasion; it makes attackers hit harder and asks nothing back. That restraint is exactly why it ages well. An effect this fundamental at a price this low rarely needs errata or replacement, and because equip is a repeatable activated ability rather than a one-shot spell, a single copy keeps applying pressure across a whole game, sliding from a dead body onto a live one for one mana at a time without ever leaving the battlefield.