Rubinia Soulsinger [Legends] Rat Ninja that source's controller mills that

that source's controller mills that many cards

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {0} {T}: Add {R}

Set: Alpha Edition Type: Land — Mountain Plains Rarity: Rare ({T}: Add {R} or {W}

it produces colorless mana instead of any other type

Whenever you put one or more -1/-1 counters on a creature

Rubinia Soulsinger [Legends] Rat Ninja that source's controller mills thatSet: Legends Type: Legendary Creature Faerie Rarity: Rare Cost: {2}{G}{W}{U} 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.