Hearthstone: Ashes of Outland - Trial by Felfire

Storyline

"(Rusted Legion, FORWARD!) Can you hear the thunder in the distance? Time to roll, Rusted Legion, ho! Cannot run, cannot hide, say goodbye to your existence. Join the army of flesh and chrome! (Here we go, here we roam, this is our world!) Will you bend your mortal knees? (Yes, you will! Yes, you will!) To Mecha-Jaraxxus, your new king? (Yes, you will! Yes, you will!) His upgraded abs are undefeated, merciless, so alpha demon, no one can defeat this team, Legion let me hear you scream! Our enemies fall in the crimson sand, they'll have no choice but to join our band, serve Mecha-Jaraxxus's evil plan, Rusted Legion sowing ashes in Outland!"