South Park: The Stick of Truth - Elven Hero Achievement

Achievement - Elven Hero
You defeated the Grand Wizard Cartman in battle.

**This is a Missable Achievement **

Create a save during your second visit to the school. At the end you will have to choose who to fight, either Kyle or Cartman. Fight one, then revert saves to fight the other, ensuring you get both achievements in one playthrough. Who you choose to fight has no impact on the game or any other achievements.