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.
"Take up the quill, and feel your future flow into the runes."
NM-Mint - $0.30
NM-Mint Non English - $0.30
Lightly Played - $0.30
Lightly Played Non English - $0.30
Moderately Played - $0.30
Moderately Played Non English - $0.30
Heavily Played - $0.30
Heavily Played Non English - $0.30
Damaged - $0.20
Damaged Non English - $0.20