Altar of the Vile Realm

When Altar of the Vile Realm enters the battlefield, destroy target nonland permanent and
each other nonland permanent gets -5/-0 until
end of turn. If a permanent would leave play, put
a Vile counter on Altar of the Vile Realm.
{1}: Add {b} to your mana pool for each Vile
counter on Altar of the Vile Realm.