Fiery Retribution

Choose two-
-Search your graveyard and/or library for a
creature with power X or less, reveal it, then put
it into your hand. Shuffle your library if it was
searched in this way.
-Destroy target noncreature permanent with converted mana cost X or less.
-Deal two times X damage to any target.
When Rothgar belched fire, so did the mountains.