Rubinia Soulsinger (CHR) from Chronicles, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Rob Alexander
• Card Text:
  You may choose not to untap Rubinia Soulsinger during your untap phase.
  T: Gain control of target creature. Lose control of target creature if Rubinia leaves play, if you lose control of Rubinia, or if Rubinia becomes untapped.