Smokestack 309 (Urza's Saga)

At the beginning of your upkeep, you may put a soot counter on this artifact. At the beginning of each player's upkeep, that player sacrifices a permanent of their choice for each soot counter on this artifact.

NM - $21.20
LP - $16.90
MP - $12.70
HP - $8.50
DMG - $4.30