Crow of justice, Goro Akechi

{2}{w}{w}{t}: Destroy target black creature. It's controller loses 2 life.
{2}{b}{b}{t}: Destroy target white creature. You
gain 2 life.
{5}{b}{w}{t}: Destroy all other creatures then flip a coin. If it's heads, you gain X life. If it's Tails,
You lose X life. X is equal to the amount of creatures destroyed by this ability.