You may choose not to untap Ghosthelm Courier during your untap step.
{2}{U}, {T}: Target Wizard creature gets +2/+2 and has shroud for as long as Ghosthelm Courier remains tapped. (It can't be the target of spells or abilities.)
Near Mint - $0.20
Near Mint Non-English - $0.20
Lightly Played - $0.20
Lightly Played Non-English - $0.20
Played - $0.20
Played Non-English - $0.20
Heavily Played - $0.20
Heavily Played Non-English - $0.20
Damaged - $0.10
Damaged Non-English - $0.10
Foil Prices
Near Mint Foil - $1.00
Near Mint Foil Non-English - $1.00
Lightly Played Foil - $0.90
Lightly Played Foil Non-English - $0.90
Played Foil - $0.70
Played Foil Non-English - $0.70
Heavily Played Foil - $0.60
Heavily Played Foil Non-English - $0.60
Damaged Foil - $0.50
Damaged Foil Non-English - $0.50