Reports of bloody carnage have reached the Crystarium, and the guard has deployed in force in answer to Holminster's plea for aid.

Final Fantasy Commander

Shineshadow Snarl

As this land enters, you may reveal a Plains or Swamp card from your hand. If you don't, this land enters tapped.
{T}: Add {W} or {B}.

A flickering beacon of righteous corruption.

The Lost Caverns of Ixalan Commander

As Shineshadow Snarl enters the battlefield, you may reveal a Plains or Swamp card from your hand. If you don't, Shineshadow Snarl enters the battlefield tapped.
{T}: Add {W} or {B}.

Commander Masters

Behold! The power of Mordor was scattering like dust in the wind.