Mist Dragon

Mist Dragon

Creature - Dragon | Power/Toughness: 4 / 4 (CMC 6)
: Mist Dragon gains flying. (This effect lasts indefinitely.)
: Mist Dragon loses flying. (This effect lasts indefinitely.)
: Mist Dragon 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.)