Does doppelganger also copy one shot items played before it?

[Baconbastard]

Originally Posted by Clipper

I believe the answer to this one was that you could, but the Doppleganger would be discarded, so it no longer has an effect.

Are you sure? because doppelganger says that you can only play it when you're in combat alone, so you wouldn't be able to play it and double your power, then use kneepads to recruit a buddy? You still played it while you were by yourself, which was the stipulation of the card. Likewise, this will answer if you can do this with the gnomes illusion ability as well or not.