Surtr, Ruler of Flame

When Surtr, Ruler of Flame enters the battlefield, deal 5 damage to each creature on
your opponent's side of the battlefield. If a
creature dealt damage this way would be sent
to the graveyard, exile it instead.
Each creature you control has "{t}: Add {r} to
your mana pool, where {r} is the creature's total
converted mana cost.