Magic Duel Target Selection

[Chazar]

Somwhere in another thread, there is an interesting post by Jurri:

The disease cloud won't affect the units if they have their mirror images intact, right? At least other AoE effects won't, to my knowledge.

Now does this mean that MirrorImage might protect against the dreaded MagicDuel? Or does this AoE-Protection-Feature not apply to MagicDuel somehow? Is this AoE-Feature still around anyhow, I've read about it before, but never tested for it...?