When Unclaimed Bird enters the battlefield, if you're on the Mirran team, choose any number of permanents, then remove from each a counter of each kind already there. If you're on the Phyrexian team, proliferate.
Near Mint - $79.80
Lightly Played - $63.90
Moderately Played - $55.90
Heavily Played - $47.90
Damaged - $39.90
Near Mint Spanish - $79.80
Lightly Played Spanish - $63.90
Moderately Played Spanish - $55.90
Heavily Played Spanish - $47.90
Damaged Spanish - $39.90