The Acid Imps in the missions inside "Ruby Demon Portal" do not attack with Acid cards, rather they attack with a large array of electric bolts.
They have a lot of electric attacks as they're not enough acid cards to build a complete deck - or they'd be too dangerous. I think my old Acid Imp template is still up in the monster wiki.
Which, curiously, is different from my notes (from mid-July), which say: 5x Acid Blast 2x Dissolve Armor 5x Powerful Spark 3x Run
Not that weird, I hand counted the cards way back when - and only had 12 out of 15 mapped, and it's not unlikely decks have been changed around a bit. Mine notes are a few months older.
