Blue creatures don't untap during their controllers' untap steps.
At the beginning of each player's upkeep, that player may choose any number of tapped blue creatures they control and pay {4} for each creature chosen this way. If the player does, untap those creatures.
Near Mint - $24.40
Near Mint Non-English - $24.40
Lightly Played - $22.00
Lightly Played Non-English - $22.00
Played - $17.10
Played Non-English - $17.10
Heavily Played - $14.70
Heavily Played Non-English - $14.70
Damaged - $12.20
Damaged Non-English - $12.20