Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats. A deck can have any number of cards named Relentless Rats.
Near Mint - $1.800
Lightly Played - $1.500
Moderately Played - $1.300
Heavily Played - $1.100
Damaged - $900
Near Mint Spanish - $1.800
Lightly Played Spanish - $1.500
Moderately Played Spanish - $1.300
Heavily Played Spanish - $1.100
Damaged Spanish - $900