Loki, The Trickster

While Loki is untapped, you may flip it face- down at any time. If you do, tap it. While face- down, this card is a 5/5 colorless creature with Indestructible, Deathtouch, and "Turn this card face-up at any time and tap it."
{1}{u}{t}: Target opponent draws 3 cards, then discards 3 cards at random.
{4}{r}{t}: Gain control of target creature until end of turn. Untap it. It gets +2/+2 and has Haste until end of turn.