Full Moon Queen Rennala

Prowess, ward {4}
Whenever you cast an instant or sorcery spell,
you may untap Rennala. If you do, add {u}{u}.
{2}{u}{u}, {t}: Exile target creature. Its controller
creates a copy of the exiled creature, except it has
base power and toughness 1/1 and is named
Imperfect Pupil.