As an additional cost to cast this spell, sacrifice an artifact. Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
Near Mint - $1.600
Lightly Played - $1.300
Moderately Played - $1.100
Heavily Played - $1.000
Damaged - $800
Near Mint Spanish - $1.600
Lightly Played Spanish - $1.300
Moderately Played Spanish - $1.100
Heavily Played Spanish - $1.000
Damaged Spanish - $800