Kyra's Wish

Kyra's Wish doesn't untap during it's controller's untap step.
Whenever you cast a creature spell untap Kyra's Wish.
{1}{g}{g}, {t}: Regenerate target creature.
Wouldn't it be nice, if nobody had to get hurt, we could all just live in peace, why can't we?"
-- Kyra, Princess of Geasha