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 - $18.40
LP - $14.70
MP - $11.10
HP - $7.40
DMG - $3.70