Voi, Retribution

{t}: Add {1} to your mana pool.
{t}, Sacrifice Voi, Retribution: Destroy target land.
"Marines, the Prophet of Truth doesn't know it yet, but he's about to get kicked right off his throne. You will take our city back. And drive our enemy into the grave they've been so happily digging. One final effort is all that remains." - Admiral Terrance Hood