Darksteel Brute
A demonstration piece for an era that wanted to show off a new keyword: a permanent built to teach indestructibility to anyone who picked it up. Strip away the activation and what remains is a two-mana artifact that survives every "destroy" effect and does nothing else, which is the lesson, not an oversight. The card exists to make indestructible legible by bolting it to the cheapest possible shell, so the keyword reads as the only reason the artifact is in the pack. The activation turns it into a 2/2 beater that walks through Wrath effects, damage-based sweepers, and most spot removal, but the rate is deliberately punishing: paying three mana every turn for a 2/2 that reverts at end of turn is a tax steep enough that the resilience never tips into oppression. That tension is the design's honesty. An indestructible attacker with no upkeep cost would freeze board stalls; one that demands three mana per swing keeps the keyword's durability from translating into tempo. The card is far more interesting as a teaching object than as a competitive one, a clean illustration that "can't be destroyed" and "matters in a game" are not the same property. Indestructibility shields a thing from removal; it does nothing to make that thing worth protecting. Darksteel Brute spends its entire text drawing exactly that line.
