You may choose not to untap Rubinia Soulsinger during your untap step.
{T}: Gain control of target creature for as long as you control Rubinia and Rubinia remains tapped.
Near Mint - $22.50
Near Mint Non-English - $22.50
Lightly Played - $21.50
Lightly Played Non-English - $21.50
Moderately Played - $18.00
Moderately Played Non-English - $18.00
Heavily Played - $13.50
Heavily Played Non-English - $13.50
Damaged - $11.25
Damaged Non-English - $11.25