You may choose not to untap Helm of Possession during your untap step. {2}, {T}, Sacrifice a creature: Gain control of target creature for as long as you control Helm of Possession and Helm of Possession remains tapped.
Near Mint - $3.50
Lightly Played - $3.25
Moderately Played - $2.50
Heavily Played - $2.00
Damaged - $1.50
Near Mint Non-English - $3.50
Lightly Played Non-English - $3.25
Moderately Played Non-English - $2.50
Heavily Played Non-English - $2.00
Damaged Non-English - $1.50