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Evil Doppelgänger for an evil clone of a good original and Morally Superior Copy for a good clone of an evil original
It is mentioned as part of Cloning Blues, that the clone might "try to murder the original to take their place".
These things are flexible enough that you could swap out "murder" for some other antagonistic verb. Rebel against. Injure. Poke repeatedly.
What is the trope for a clone that goes rogue against his/her prime self?
Edited by holygrail24