Mist Dragon
{4}{U}{U}
Creature -- Dragon
4/4
{0}: ~this~ gains flying. (This effect lasts indefinitely.)
{0}: ~this~ loses flying. (This effect lasts indefinitely.)
{3}{U}{U}: ~this~ phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)