Warden, of the Boiling Rock

Haste, Fear

When Warden attacks, return an artifact land from your graveyard to the battlefield.

FireBending 4 — When you cast this spell, you may sacrifice up to 4 untaped artifacts and/or lands. If you do, when this card enters the battlefield, deal 4 damage to any target.
"He wants us to cut the line." -Prison Guard
"But if we cut the line, there's no way he'll survive." -Prison Guard 2
"He knows that."