“Oh, I'm not really HERE here. I am merely a figment of your imagination”
Imaginary Glumshanks is a version of Glumshanks hallucinated by Kaos in Skylanders: SuperChargers. He tells Kaos that it is his destiny to rule Skylands, but to rule the universe, he would have to destroy Skylands, thus destroying his destiny.
Before his boss battle, Kaos mistakes the real Glumshanks for Imaginary Glumshanks.
Imaginary Glumshanks may be Kaos' conscience, or the closest thing he has thereto.