Books like Dragon Forge

A heroic battle to uphold the balance of Eberron®!Gaven has fulfilled part of the prophecy and become the Storm Dragon. Now he seeks the Draconic Prophecy at its source in Argonessen, the dragon nation--but as he travels towards that ancient continent, Gaven may discover much more than he expected.Meanwhile, Aundairian loyalists--assisted by a sinister dragon cabal--are assembling the Dragon Forge: an eldritch machine designed to harness the power of a Siberys dragonmark and amplify it. In this case, to create a devastating storm of hail and acid rain to go before Aundair's armies as they march into the Eldeen Reaches. And they know just the dragonmarked to use...