Puella Magi Satomi Usagi

You can choose to tap or untap this card during the untap step.
{t}{u}{6}: Gain control of target creature as long as this card remain tapped.
{t}{b}{2}: Deal 2 damage to target creature.
{t}{w}{3}: Search your library for an Incubator creature with the converted mana cost equal or lower than 3 and put it to your hand then shuffle your library.
She is nice and caring to her friend but once she reveal her true color everything become worse.