River of Tears

River of Tears enters the battlefield tapped.
{t}: Add {c}.
{t}: Put the top seven cards of your library into your graveyard. You lose X life, where X is the highest converted mana cost among cards put into your graveyard this way.
"Roadways to success contain streams of tears, backstabbing pains, and utter despair. Only the willful and strong-minded will prosper."-Tezzeret