In the mission titled "The Dark Beyond" on Earth, you can force your ghost to say the famous line that everyone knows and loves... "THAT WIZARD CAME FROM THE MOON".
In order to make this happen, you must launch the mission and kill the Wizard before or during the dialogue where Dinklebot says "There's a wizard here, you have to kill it!"
If done correctly, after the Wizard dies and the mission finally comes to an end, you will hear Peter Dinklage's most renown dialogue from Destiny Alpha. Good luck and enjoy Guardians!
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Most renown? Bullshit.