The Burned District

The Burned District enters the battlefield tapped unless you control Meera Van, Marshall.
{t}: Gain {w} or {b} or {r}
{t}: Add {w}{b}{r}. Activate only if you control 5 or
more Thresher or Mercenary creatures.
{t}{b/r}{w/b}{r/w}: Thresher and Mercenary creatures
you control gain Deathtouch until the end of
your turn.