When Tainted Adversary enters the battlefield, you may pay {2}{B} any number of times. When you pay this cost one or more times, put that many +1/+1 counters on Tainted Adversary, then create twice that many 2/2 black Zombie creature tokens with decayed.
NM-Mint - $1.70
NM-Mint Non English - $1.70
Lightly Played - $1.60
Lightly Played Non English - $1.60
Moderately Played - $1.60
Moderately Played Non English - $1.60
Heavily Played - $1.40
Heavily Played Non English - $1.40
Damaged - $1.10
Damaged Non English - $1.10
Foil Prices
NM-Mint Foil - $3.40
NM-Mint Foil Non English - $3.40
Lightly Played Foil - $3.30
Lightly Played Foil Non English - $3.30
Moderately Played Foil - $3.10
Moderately Played Foil Non English - $3.10
Heavily Played Foil - $2.70
Heavily Played Foil Non English - $2.70
Damaged Foil - $2.20
Damaged Foil Non English - $2.20