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 - $19.25
Near Mint Non-English - $19.25
Lightly Played - $18.25
Lightly Played Non-English - $18.25
Moderately Played - $15.50
Moderately Played Non-English - $15.50
Heavily Played - $11.50
Heavily Played Non-English - $11.50
Damaged - $9.75
Damaged Non-English - $9.75