Vulshok War Boar

A 5/5 for four mana sounds like an overshoot until you read the tax: the body shows up only if you feed it an artifact on the way in. That was the bargain a whole wave of artifacts-matter commons and uncommons kept proposing, asking decks to spend permanents to unlock above-rate stats, and this is the bluntest version of the trade. The sacrifice rides the enter-the-battlefield trigger, so there's no holding the artifact back: pay or the boar dies on the spot, and you've spent four mana to do nothing. What makes the cost less punishing than it reads is what an artifact-heavy board wants to do anyway. A worn-out Bonesplitter, a tapped artifact mana rock, a token already marked for the bin: any of these covers the tax, and a deck built to flood the table with cheap artifacts treats the requirement as a clearance sale rather than a real loss. The card belongs to that artifact shell, where permanents are currency and a 5/5 for four is precisely what that currency is meant to buy. Outside it, the boar asks for a sacrifice you can't make and punishes you for casting it, which is the honest price of the rate.