Alice DeRoss, The Memory

{t}: Enchant target human for as long as Alice DeRoss, The Memory remains tapped. Enchanted creature gains +0/+2. If enchanted creature takes damage, untap Alice DeRoss, The Memory.

Whenever Alice DeRoss, The Memory untaps you may tap target creature.

You may choose to not untap Alice DeRoss,
The Memory during your untap step.