The moment I saw the crystal I thought SG-1 and that episode where O'Neill touches the crystal and it copies his form. So, I was a little annoyed...however, they mentioned the episode in the show at least so they admitted they copied....I don't know...No matter how unoriginal the story may be, they pulled it off and I really liked this episode. Sheppard was in everyone's nightmares and the entity was able to kill people through their nightmares. In the end, Sheppard and McKay teamed up to kill it. I was laughing a lot during this episode and it seemed to have more humor than usual and I loved it. Overall, interesting story, though unoriginal, and great humor and characterization.
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