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Here we have Nasty Luthor, in a modern business outfit (she hasn't been seen since the 70s.. I think ) . She has used the Mad Hatter .. uh.. hat, to Mind Control Wonder Woman, so she could capture Supergirl with her Magic Lasso.
If you wonder about her words, Nasty was always convinced that Linda Danvers was Supergirl, but she never could prove it.
Wonder Woman using th tv show costume.
Background from Superman/Doomsday and Superman:TAS, that's Lex Luthor's office with a view of Metropolis.