At the beginning of your upkeep, change Halfdane's base power and toughness to the power and toughness of target creature other than Halfdane until the end of your next upkeep.
NM-Mint - $28.40
NM-Mint Non English - $28.40
Lightly Played - $27.00
Lightly Played Non English - $27.00
Moderately Played - $25.60
Moderately Played Non English - $25.60
Heavily Played - $22.70
Heavily Played Non English - $22.70
Damaged - $18.50
Damaged Non English - $18.50