If you gain control of another player's creature until end of turn and exert it, and then that player regains control of it, it will untap during that player's untap step
16, which ended up coming true
Happy Meal 4 Hotcakes with either Mini Fries ($4.29), Apple Slices ($4.29), or Small Fries ($4.29)
[226] They later released an expansion Battle for Zendikar featuring multi-color Planeswalkers Kiora and Ob Nixilis and a colorless Eldrazi Ruiner, and a second master set Shadows Over Innistrad which has 4 new Planeswalkers and also includes the addition of cryptoliths
A powered-up Psychic with the technique Psychic, Recover, Thunder Wave and a fourth non-Psychic maneuver like Seismic Toss, Dig or Blizzard is almost unstoppable
You have to be the one to flip the coin in order to be considered the winner of the flip