Whir of Invention 86/0 (Special Guests)

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.

NM - $13.90
LP - $11.10
MP - $8.30
HP - $5.60
DMG - $2.80