Juggernaut

The original aggressive artifact, and the card that taught Magic what "drawback" was supposed to mean. Five power for four mana was a rate the early game did not otherwise offer, and the design paid for that rate with the mandatory-attack clause: the body could not sit back on defense, could not be held to ambush a planeswalker the game had not yet invented, could not be used as a deterrent. The wall-evasion rider completes the contract, a flavor-driven aggression tax that doubles as a structural promise: a four-mana threat with five power that cannot be chump-blocked by a Wall of Wood is doing real work past the first turn it lands. Decades of artifact-aggro design have circled back to the same shape, with Phyrexian Colossus, Steel Hellkite, and various spawn-pumping Eldrazi all rhyming with the original tradeoff of power-for-restriction. The rate is still respectable; what has aged is the assumption baked into the drawback, that forced attacks are a meaningful cost. In a game that now routinely rewards attacking with triggers, counters, and exert payoffs, the "must attack" line reads less like a leash and more like an asset, and the card keeps earning reprints in environments where the designers want a clean, hostile beater without writing a new one.