Flying Tetravus enters the battlefield with three +1/+1 counters on it. At the beginning of your upkeep, you may remove any number of +1/+1 counters from Tetravus. If you do, create that many 1/1 colorless Tetravite artifact creature tokens. They each have flying and "This creature can't be enchanted." At the beginning of your upkeep, you may exile any number of tokens created with Tetravus. If you do, put that many +1/+1 counters on Tetravus.
Near Mint - $31.400
Lightly Played - $25.100
Moderately Played - $22.000
Heavily Played - $18.900
Damaged - $15.700
Near Mint Spanish - $31.400
Lightly Played Spanish - $25.100
Moderately Played Spanish - $22.000
Heavily Played Spanish - $18.900
Damaged Spanish - $15.700