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 Foil - $0.70
NM-Mint Foil Non English - $0.70
Lightly Played Foil - $0.70
Lightly Played Foil Non English - $0.70
Moderately Played Foil - $0.60
Moderately Played Foil Non English - $0.60
Heavily Played Foil - $0.60
Heavily Played Foil Non English - $0.60
Damaged Foil - $0.50
Damaged Foil Non English - $0.50